Theory Lessons App Reviews

Theory Lessons [Music] App Description & Overview

What is theory lessons app? Theory Lessons features 39 music theory lessons from, presented in their original animated versions.

Complete lesson list:

• The Staff, Clefs, and Ledger Lines
• Note Duration
• Measures and Time Signature
• Rest Duration
• Dots and Ties
• Steps and Accidentals

• Simple and Compound Meter
• Odd Meter

• The Major Scale
• The Minor Scales
• Scale Degrees
• Key Signatures
• Key Signature Calculation

• Generic Intervals
• Specific Intervals
• Writing Intervals
• Interval Inversion

• Introduction to Chords
• Triad Inversion
• Seventh Chords
• More Seventh Chords
• Seventh Chord Inversion

• Diatonic Triads
• Roman Numeral Analysis: Triads
• Diatonic Seventh Chords
• Roman Numeral Analysis: Seventh Chords
• Composing with Minor Scales
• Voicing Chords
• Analysis: O Canada

• Nonharmonic Tones
• Phrases and Cadences
• Circle Progressions
• Common Chord Progressions
• Triads in First Inversion
• Triads in Second Inversion
• Analysis: Auld Lang Syne

• Building Neapolitan Chords
• Using Neapolitan Chords
• Analysis: Moonlight Sonata

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Theory Lessons App Tips, Tricks, Cheats and Rules

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How to contact Theory Lessons (
Find this site the customer service details of Theory Lessons. Besides contact details, the page also offers a brief overview of the digital toy company.

Theory Lessons Customer Service, Editor Notes:

Theory Lessons Version 3.1.126 January 2021

• Improves compatibility with newer devices. • Fixes an issue with swipe gestures. • Fixes an audio glitch with certain piano sounds..

Theory Lessons Version 3.0.101 November 2017

• Adds full support for iPhone X..

Theory Lessons Comments & Reviews 2022

- Very good BUT

This honestly is I would say the best music theory app out there I do with that between this app “Theory” and “Tenuto” that is would be more helpful in memorizing things like maybe implementing something for practice. Also I kinda wish “Theory” had a thing in the scales section to learn about pentatonic scales and blues scales. Also to learn to apply concert pitch to different instruments. Thanks I hope you guys are improving things also honestly this app is extremely good you should honestly have people pay for it so you can have the time to update it and stuff and implement those things.

- Almost perfect.

Literally all that one needs in a very comprehensive package. Only gripe is that it doesn’t allow display of bass clef only treble clef.

- Amazing! Just one thing to add

I didn't get into music theory until I got a guitar on a whim, then I wanted to try to actually learn music as a side thing, and now for the first time I feel like I actually know a little something about music. Only thing I would add to the app is something that you already have on your website (where I learned from, I downloaded the app and it's sister tenuto) is the pop-up piano that helped me figure out scales (I never learned piano so it was easier for me to visualize this way). Otherwise, thanks for you hard work!

- Truly Very Nice

I had needed a great music theory app, and this fulfills my need quite perfectly. The teaching is laid out in a very easy-to-understand format with attractive interactive user-friendly diagrams. By the end of the first lesson, I felt as if I’d learnt quite a lot. And all without any effort at all. It’s unbelievable! I already have an excellent practical practice app, in form of playgroundsessions app, that I had bought in a package deal along with a baby grand piano. But I had found the hands-on playgroundsessions teaching tool to be slightly lacking in deep music theory support. So I went looking for something to compliment the playgroundsessions hands-on app, and to hence fully round out my musical education. Now I have one app for hands-on practice, and this one, for in-depth theory learning. This is great!

- Best app in store for beginner

This app is the best in the store for understanding,y and comprehensively explaining the mechanics and structure of music writing so one can begin understanding sheet music and effectively sight reading piano music. This app saves me huge amounts of "lesson time" and speeds my learning with clear understandable illustrations and very effective drills. Congratulations on a super app.

- Thank you!

I appreciate the time you folks spent making this app! I would understand if you charged for it, but I am so thankful that I was able to use it for free. Thank you for helping spread this knowledge and make it accessible :)

- Doesn’t have the practice section

I bought this app expecting to get all the features that they offer on their website, like the practice section. However, after buying the app, I found out that this is just the theory section and doesn’t have any of the other tools. It’s a whole different app for that. I wish I could get a refund on this app. I’ll still buy the tool app since that’s an amazing feature they have on their website.

- Solid foundation

What can I say, this app is clean and easy on the eyes. Excellent as reference when you forget things, and as a learning tool the way it moves the explanations with visuals and corresponding sounds is very logical, also makes it easy to understand the lessons.

- Tired Of Confusing Theory Books? Buy this.

Clear and precise music theory explanations. Music Theory has always confused me, but this app's visual design/animation is very helpful along with the material presented. Buy this $3 dollar app! No need to pay for tons of theory books.

- This app is a jewel

I love this app. It is simple in its format but highly effective in conveying this not-so-easy-to-grasp material. It is better than all the music theory books I have read to date! What a nice contribution.

- Can’t open app.

The app is working again, all I needed was to delete it and put it back in my phone. Works perfectly.

- App is Great!

It’s a wonderful app honestly and truly and helpful as a refresher tool for my Praxis 2 exam coming up. The only problem is I was looking for some examples rather than explanations like they have on the website.

- Great way to start!

This app is a great kickstart into music theory! I've used this for a couple weeks and I've already have improved in my musicianship and overall understanding. Thanks for this great app!!


I am majoring in music ed at my college and this app is so helpful especially that my note taking is horrible. This app is super helpful and highly recommend it for those taking theory in college

- Solid app

I haven’t gotten too much into the app, but after a week into having it - it seems pretty epic. I am rusty and brushing up on music theory.

- Very informative and easy to learn

Great straight forward lessons on music theory essentials. Very helpful. Very well organized , very clear, very easy to follow. Excellent.

- Excellent

Clear, concise, informative, and easy to use. Great job. I want more content!!

- Please add more audio !!

Great app but please add more audio examples. For instance, I am trying to learn more about compound meters or odd meters and there are NO audio examples !! Frankly I am a little annoyed coz that’s why I bought it. Otherwise it’s a nice app.

- Elegant piece of work

Great job. Covers the basics. A wonderful refresher and learned some new material as well. Having dabbled at coding, what a beautiful, refined piece of work. A keeper reference tool.

- Great learning tool.

This is a great way to learn the fundamentals of music theory. I use its companion app Tenuto to practice what I learn. Very highly recommended.

- Practice?

The Music Theory website directed me to this app as one of the things for practicing, but there’s nothing for practicing notes, keys, etc. on the app - only explanations. I’m a bit disappointed in it.

- Pretty Good App!

This app came in handy a lot in my Music Theory class and was well worth the money for me.

- Simple and good. No scales though.

App is very simple and does the job. Adding scales would be appreciated.

- Outstanding but...

... needs to incorporate guitar theory, not just theory demonstrated on the piano board. Where is the Circle of Fifths?

- Awesome

I like this app and it works well with their other app, Tenuto. The only criticism I would have is that it needs more information on it. It should have the different modes of scales (Ionian, Dorian, etc), along with the inversion symbols for seventh chords, etc. It should have all of the stuff Tenuto has but just the theory behind it. Other than that I recommend this app to anyone who wants to improve their theory knowledge! :)

- You have to be kidding me

Its a list of bullet points with a couple of gifs. The positive reviews here must be a scam. Worthless.

- needs practice modes from the website

needs practice modes from the website

- Missing a lot

Where’s is the circle of fifths?

- Not worth $1

This is so lame for a $4 app. Don’t buy. I would like a refund.

- Outstanding job! One tweak.

I am truly amazed by the quality of this app. Well worth the money. I have learned so much here and I feel as though I can really take music to the next level. I have one suggestion, however. It is tough to retain all of this knowledge without having a good way to practice some of these lessons. I understand that there is a sister app, Tenuto? I would be one hundred percent more satisfied if you released an update for this app or Tenuto that included exercises identifying chord progressions, practicing things like the more complicated triads and such; the vocabulary is very hard to retain despite how well the lessons were put together. Thank you for your hard work!

- Best of the Best

The absolute best music theory app out there. Nothing else comes close. The information presented is very clear and easy to understand with both visual diagrams and sound. The app starts with music theory basics and takes you step by step up to advanced music theory, harmony, and analysis. Everything is packaged in small, easily digestible chapters. The only word of caution, the diagrams in this app are very keyboard centric. If you are a pianists, this app is perfect for you. If you play a non-keyboard instrument, a little knowledge of the keyboard layout will be helpful to get all of the benefit from this app.

- This Taught me More than My Class at School

I am so happy that something like this came out for people who have trouble learning it in class! This application let's the user learn and teach themselves, in a way, at their own speed and teaches them a good amount of Music Theory. Very professional and user-friendly. I, for one, am glad that I can finally learn this stuff on my own. This should be an award-winning application if it isn't one already and should be used if you want to learn the many wonders that Music Theory can do for you.

- Well done.

The theory lessons are spot-on: I think it could have spent a little more time on basic chord construction before leaping into modes, where it starts getting tricky very fast, but maybe that’s just my own weaknesses speaking. At any rate, for less than a latte at Starbucks, I got some tight lessons that gave me the basic vocabulary to get more help from other musicians as well as make sense of music theory articles on Wikipedia. Certainly less than a course at a community college, to say nothing of private lessons.

- Lovein theory

This app is really helpful . Simply put for my simple mind . I have read a lot of theory books and have taken classes in school and never really grasped the concept . My daughter graduated from music college and I had a hard time understanding her way of teaching it to me . I love this app !!! Suggestion .... Could you make the note duration portion of the lesson have a tone when individually reviewed in relation to the note duration itself ? Like whole note .... Mmmmmmm, half note .... Mmmmm ect. .... Thanks for the app !!!!

- Very Effective

As a person who has taken music theory before in college, I think this app effectively teaches enough of the basics of music theory. It can get a little complicated I think to those who don't know music theory before, but its great as a follow up for me because Im using this as a resource to teach music theory, myself. You don't need music theory to play an instrument, but if you want to go far in learning you'll definitely need to learn some music theory and this app helps do the job!

- Interface

Whether you're just starting out or you have a good deal of experience, this app is a wonderful resource for getting a better understand of music theory. The real wonder of this app is in it's simple teaching interface. As you progress from slide to slide, there are subtle animations that aid in comprehending scales, time signatures, chords, etc. This app makes it easy to learn and makes the overwhelming subject matter easy to digest. I love it, and I hope the design inspires other educational apps beyond just music, they really nailed how a learning app should function. Also, the Tenuto app from the same developer has some cool "mini-game" training tools so you can apply the theory into practice. As a musician and songwriter I've found both apps have enriched my writing style and changed my approach to compositions.

- Well organized for any beginner!

I have a learning disability called auditory processing disorder. This app has clear step by step learning & is divided in sections. It will help you learn the basics & process of building the knowledge you need with understanding & writing music for any instrument. It also has visuals to help you with the description. If you are taking music classes and need a good go to guide, this is it! You won't regret getting this App! It is well worth it!

- Magnifico e Stupendo!

OMGOODNESS!!! I have been playing guitar for 12 years. Self taught, so I don't know a lock of theory. This app is absolutely amazing because it starts at the basics, just in case you missed anything, and then continues on to some lower advanced stuff. This app is really well made and the design is quite aesthetically pleasing. It seems like an app that could have been made by Apple themselves. Good job guys. Keep adding lessons!

- Finally Understanding Music Theory

This app is excellent. I am finally starting to understand music theory thanks to this. Their slide show presentation style should be a standard in educational apps. I love the way you can see all comments on a topic at once to be able to move around the topic easily. I hope more music theory apps and content is made by these guys. Would love to expand on knowledge from them. Nice work!

- Great app, excellent design

I am very impressed and pleased with this app. It is worth the price. It does an great job teaching a solid foundation in music theory. It has a very simple user interface, and looks very nice. I would recommend this app to anyone learning any instrument. The only thing I wish it had is a few more lessons, but who knows, this may come with future updates. Overall a worthwhile purchase!

- So much easier with knowledge

I cannot say enough how much these lessons have helped me and my daughters in learning to read write and play music. I used to just do everything by ear and it is painstakingly slow, now that I know a little theory, I can hear the music as I write it and can tell what notes will be dissident and what will build towards a harmony root. Love it. Thank you!

- Best application for serious music theory learner

I start to learn piano and need to learn music theory as well, after some while I found I really love those music knowledge and want to study seriously , so I got some textbook for music college, but feel a little frustrated since I am self-taught. This application did me a HUGE favor to understand the basic rule. It worth every SINGLE PENNY! Thanks to the great musician who create it!

- Everything I needed

I'm really happy with how well this app navigates you through very complex musical concepts. It explained theoretical principals in a way that is easy to understand, assimilate and commit to memory. I was honestly disappointed when I realized I had gotten through all the chapters. I highly recommend this app for all who share music as a passion!

- Simply amazing!!

I never do reviews, so this must prove that this is an awesome app!.. This app is very easy to use and is very easy to understand. It provides very helpful examples with visible keyboards and staff's with highlighted notes to help you understand the lesson being taught. At the very end if each lesson it gives you recaps and guides to help you remember. I love this app and would recommend it to anyone!!!

- I like it

This app is useful for review of a lot of different theory topics. It's organized well with graphics that change when you touch a paragraph to illustrate the topic in the paragraph. There are several analyses of songs that follow the same steps I've learned in my theory class. It will take a while for me to get through all of it. What I've seen is solid and it's presented in way that's very approachable.

- Great- want more!

The only thing that is missing from this is more lessons! Keep going :) I hope to see more added in the future. More integration with Tenuto app would be good, so after a lesson you are sent to Tenuto for practice. Or within this app it would be great to have a test section for analysis and identification on things not covered in Tenuto.

- Great

This is an amazing tool. I love it! I have never played the piano and I found this app to be extremely helpful. It was simple and to the point. I think I learned in 5 minutes what take hours reading a book or watching videos. I will definitely recommend this app to those who has never played like me.

- Terrific Reference

Very good music theory tutorial. The subject is presented in a clear and concise format. The illustrations are excellent. Don't let the dimmed audio icons confuse you. For lessons that have audio, the audio icon is enabled. I'm not sure why there needs to be a dimmed audio icon at all, but that is a very minor consideration. This is one of the best educational apps I know.

- Very nice

Each lesson is clear and straightforward... cursor appears on the text making the point while animated notes on the staff may move and sometimes the note is played... plenty of examples too to get the point across. Very nice app... simple and gets the job done!

- More Lessons!!

I LOVE this app, it's taught me a great deal of theory that I had a hard time comprehending myself. And I'm sure everybody else has said in a review, the only thing that'll make this app more great is more lessons as well as having a bit more detail/explaining! Can't wait for an update on this app! Keep up the good work guys!

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- Easy to understand

As a music teacher I have used used this app to help explain different aspects of music theory to struggling students. The step by step visualisation on each concept, plus the use of audio has been very helpful.

- Totally useless for a beginner

I’m a beginner bass player and needed some help with reading and understanding music, hence buying this app. Let me tell you it is useless for that purpose. It is vague, confusing and downright frustrating. It’s a waste of money for someone like me but maybe better for more experienced people. Bare that in mind if considering

- Great app, but questions?

Great app to teach you some basics of music theory. Have found it has really helped me to revise and learn. What I think would be a great addition though is questions/a quiz, at the end of each category, as well as at the end, referencing all aspects of the app.

- Such an incredible tool

I'm currently studying audio engineering And I need to understand sheet music so this tool is invaluable! Not to mention it's easy to understand! Thanks heaps guys!!!

- Great stuff

With this and the developers other program Tenuto, music is within reach of everyone.

- Brilliant way of learning music theory

Such a good way to learn music theory. Short lessons that teach the basics of theory in an accessible way.

- Needs the proper terms

What the heck is a half step, a whole note? Give us the proper terms that majority of the world uses, not the american dumbed-down terms... Or at least the option to use one or the other. Could be dead easy to implement... Just use an option that replaces particular terms.

- Great for Beginners

For someone interested in music theory, this is a great launchpad in terms of usability and ease of access.

- Just visit the website

This app is a copy of their website Literally 1 for 1. Just visit the website

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- Add in modes

Great app, only thing I would suggest in an update is the addition of Greek Modes and different scale variations.

- Easy to use and very informative

This app has an excellent interface. Simple and clean, and goes through all the needed music concepts. Perfect on-the-go tool to stay fresh on concepts I’m learning from classes.

- Very informative.

This app is excellent for musicians. Without a doubt a must have for any musician.

- Great!

I have been wanting to learn about music theory for a while now. I bought this app and immediatley learned what the little symbols are. Its well worth the money.

- Helped me a lot!

This app was a tremendous help in music theory. I learned most concepts in under 2 minutes, and the clear and simple instructions, with the highlighted sections, only served to improve my experience. 5 stars.

- Simple but great

I learned music in french. The app allows me to get the notions in english. Thank you!

- Fantastic

Bought this app (and their other app Tenuto) after visiting their very useful website. Small price to pay to support a site that has built such helpful apps. Keep up the great work.

- Best $3.49 I've ever spent

Contrary to the person who wrote a review before me, I'm more than happy to spend my $3 on your app. And even though all of this information is available for free online, wouldn't you say that about all the information you get in every course you've ever taken and paid thousands of dollars to attend? I think the knowledge this app has made accessible to me and countless others is well worth the money, if not more.

- icon

can we get the wood app icon back? the red one is meh

- Yes!

An absolute must have.

- Sarah

This app is seriously AMAZING. I've been taking piano lessons since I was 5 (over 15 years) and I've never used anything better for theory. It really helps you understand

- so so...

Good points: Very easy to visualize. I like the design. Bad ones: Too basic and there are just few audio demonstrations.

- Fan

I've used and referred others to for at least ten years, and the mobile app is even better. Extremely clear instruction, and I love the key calculation method that is presented. Highly recommended!

- Awesome!!!

I highly recommend this app why? BECAUSE it is very in-depth yet it is easy to understand because of the flash animation...REALLY helpful plus the price for what you get is really good but try it for yourself and you be the judge

- Meh

Well laid out, easy to follow, and not worth the money. Why? Because of the Internet (cue gambino). I can find all this info for free. They did set everything out in a nice way. Well done app. Just make it free.

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Luigi Gervasi

@FabioGhironi @erlichya Absolutely! A lot of lessons to be learned here! However, IMHO, is not much about the attitude to organized caos, but rather an appropriate bottleneck exploitation policy. Not a surprise for the country that gave birth to the father of Theory of Constraints...

im here to lie and joke

@highsaditynii Das what we have to do in da UK. We gotta do a theory test and driving test and have to have driving lessons


@halkalight Friends has genuinely funny jokes and moments. Big bang theory has science lessons and laugh tracks


@Beetqueen2 @dontwohig @debgoggin @MrsHLevine The public school curriculum sucks and the today's teachers barely know anything themselves. All they know now is critical social justice theory and identity issues. All their lessons center around this crap. It's indoctrination not education.


@blindmellojelly @prime_bee Magnifica went to the piano at 4 & started playing lady Gaga bad romance we tried piano lessons she hated them-at 11 she took to the piano again She’s self taught & learned to read music in less than a week, & knows music theory like a default skill😳

charlotte / bram 🌸✨

not to imply that i WON'T before then, but like... a girl who has all of her eggs in one basket? (the right) equipment all in one room, keyboard and bass lessons done, music theory learned and even better drumming is going to make it all come alive in dividends

Phil Incelmo

Hey, if anyone’s New Years Resolution involves taking lessons for *guitar/bass/drum *music theory *audio engineering *production/beat making A dear friend in Chattanooga is offering lessons as his gigs dry up! He was the songwriter in my first band and one of my best friends!

Spree Wilson

Day 1 of 365: Showed of for myself today. 2hr guitar practice, vocal lessons/practice, music theory class and wrote a new song. 364 days to go

oshun 🌻

I feel sorry for learner drivers. My sister has had to reschedule her theory like 3 times because of covid and you still can’t do lessons till April.

Gordon Emmanuel

Beware: Every theorist has a bias and every theorists is a product of his/her era. Some lessons are timeless and some lessons should be left in time. Disdain Dogma. CLAUSEWITZ IS FROM MARS, JOMINI IS FROM VENUS: WHY CONTEXT MATTERS IN MILITARY THEORY


@AngieYWine @timmilford In my more outlandish theories I think it's a Marco Polo thing..... a theory rather reflecting romance and not fully listening in history lessons! But it works. Umami agogo.

Big Chef Gazpacho ♡♪!? Geno Mourning Session

Also: -get better at music theory -ear training -vocal lessons

Christine Rickard

@TorikateC Theory again, apply new and have to do the 12 lessons

Colm R. McGuinness

@hellylovesrawk I LOATHHHHHH their ads. "If you don't understand chords or music theory, LIKE ME, this is perfect for you" Nah, you know what is though? Music lessons! Of any kind. Just start anything. Also, why do they always have midi keyboards that they don't use?

Haley Morrison

@DVLAgovuk will you be offering an extension to theory certificates due to Covid. As driving lessons and tests have been majorly restricted in 2020?

Theory Lessons 3.1.1 Screenshots & Images

Theory Lessons iphone, ipad, apple watch and apple tv screenshot images, pictures.

Theory Lessons iphone images
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Theory Lessons iphone images
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Theory Lessons (Version 3.1.1) Install & Download

The applications Theory Lessons was published in the category Music on 2012-01-17 and was developed by [Developer ID: 459313479]. This application file size is 3.18 MB. Theory Lessons - Music app posted on 2021-01-26 current version is 3.1.1 and works well on IOS 12.4 and high versions. Google Play ID: net.musictheory.TheoryLessons