# Music Theory by Musicopoulos > Comprehensive music theory lessons and practice exercises for musicians. (iPhone/iPad app by SpartanApps.) - Source: https://appshunter.io/ios/app/music-theory-by-musicopoulos/id319290362 (this page in markdown: same URL + `.md`) - Developer: [SpartanApps](https://appshunter.io/developer/319290365) - Category: Education, Music - Price: $3.99 - Rating: 4.60/5 from 43 App Store ratings · 51 written reviews indexed - Age rating: 4+ - Requires: iOS 11.4 · 61 MB - Languages: English - Released: 2009-06-15 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/music-theory-by-musicopoulos/id319290362/reviews.md ## What is Music Theory by Musicopoulos? Combining structured music theory lessons with matching exercises is what sets Music Theory and Practice by Musicopoulos apart from the crowd. Check out all these available subjects: - Introduction to Intervals - Introduction to Scales - Circle of Fourths and Fifths - Key Signatures - Diatonic Intervals - Major Chords - Diatonic Intervals, Continued - Relative Minor Scale - Inverted Major Chords - Chords Continued - Descending Intervals - Chromatic Intervals - Diatonic Chords - Harmonic Minor Scale - Melodic Minor Scale - Inverted Intervals - Major 7th Chords - Minor 7th Chords - Dominant 7th Chords - Major 6th Chords - Pentatonic Scale - Minor Pentatonic Scale - Modes *** There is no other application specifically designed for iOS that offers so much Music Theory content in one complete app. *** Develop your ears as you develop your Music Theory knowledge. Musicopoulos comes with a beautiful default piano sample that will help develop your ears as you develop your musical knowledge. *** Other instrument choices for input include: - Piano - Guitar - Bass Guitar - Violin - Viola - Cello *** Musicopoulos is the best drilling app, available exclusively to the iTunes Store! The core subjects currently available included: - music theory - sight reading with more subjects, exercises and modules on the way! Understanding music theory will help you become a better musician. Your extended knowledge may just be what it takes to give you the edge! Download Music Theory and Practice by Musicopoulos now and become a part of the music family! What our loyal uses are saying about Musicopoulos. “Awesome music app - I don't usually write reviews but I want to share my love for this app because its the best app out now for musicians who want to strengthen their music theory and sight reading. The recent update has made the app that much better and is organized even for beginners to get started on their music theory...” “Music Theory Practice - It was good before. It is now excellent with the latest update, good to see the developer adding content and re-coding the app...” What the critics are saying about Musicopoulos. "...practice sections are phenomenal... Pure gold" - Review by Brian,http://learnjazzwithme.blogspot.com "I mean seriously people, if you play music, you should have this app on your iphone" - Review by www.musicgearreviews.net " [Musicopoulos] offers a huge amount of review potential for the student learning music" Review by techinmusiced "If you or your child is learning to play an instrument, this app is for you." - Reviewed by thattechchick.com "I was really quite impressed by Musicopoulos. As a homeschooling mother, I sat up and took notice right away of what a useful tool this application will be." - Review by homeschoolblogger "lessons with accompanying practices in notes and intervals, scales, and chords. Finally, you can fit your favourite class in your pocket" - Strings Magazine, January 2010, No. 177 Many of the exercises throughout the course include Beginner, Intermediate and Advanced levels so you can build on your knowledge at your own pace. However, none of the lessons are locked so you are free to explore the entire app freely. What would you like to see in the next update? We want to make Musicopoulos the best music theory and practice app available, but we can't do that without your help! We love hearing from you. Any feedback is good feedback. Visit our website and send us an email. Please rate Musicopoulos. Please show your support for Musicopoulos by rating us on the App Store. The more support we have means we can include even more content in this app. You can rate as many times as you like. ## Key features - Structured music theory lessons - Matching practice exercises - Ear training development - Multiple instrument input options - Extensive subject coverage - Sight reading practice ## Recent user reviews (10 of 51) All indexed reviews: https://appshunter.io/ios/app/music-theory-by-musicopoulos/id319290362/reviews.md ### 5/5 — Best theory App available *2024-03-10* Absolutely fantastic App ! ### 5/5 — Violin issue *2022-04-25, version 2.8* Can’t make the “c” on the “e” string work. I have to rotate from landscape to portrait and back to landscape to continue. Otherwise great app ### 5/5 — Absolutely superb *2022-04-09, version 2.8* The best tool for learning music theory that I have ever found ### 5/5 — Incredible app *2021-08-27, version 2.8* I have tried a lot of music theory apps, and this one is by far the best I have seen. It offers a very well organized course with practice quizzes that truly help to learn the content. It also has options for multiple instruments, and using the guitar option has already helped me translate what I have learned to my instrument without having to actually pick up the instrument, which is perfect for times I’m away from your instrument. Highly reccomend! One suggestion I have for the developers: please add interactability with the entire guitar fretboard when doing quizzes. This would be useful for memorizing where common notes lay higher up on the neck. Thank you!! ### 4/5 — Fantastic, just missing left handed mode for instruments *2021-04-03, version 2.8* This app has been my companion for a couple years. Keeps me on my toes, and in the car offers tests/games that actually exercise your musical mind. Only thing missing is left-handed mode for instruments in tests. Other than that a truly perfect app for students and experienced musicians looking for a refresher ### 4/5 — Great lessons. Needs midi keyboard support! *2019-03-29, version 2.7* This is app is teaching me a lot but I’m running into a wall not having midi keyboard support. I need to play what I’m learning with the app. Still, though, thanks for the education! ### 5/5 — Amazing for any level *2019-01-04, version 2.7* When I told my musician friends I wanted to learn theory, they recommended this app and it took me from beginner to having a solid grasp of it very quickly! I highly recommend this app! ### 5/5 — Best all around theory app *2018-12-03, version 2.7* In terms of both theory content and practice exercises I would say this is the best app I have found. All lessons are easily/quickly accessible as well as their corresponding practice quizzes. The quizzes allow input on either instrument or via clicking the notes. Without too much effort I found my comprehension and most importantly retention of the content progressing quickly. Have already recommended! ### 5/5 — Amazingly underrated *2018-10-22, version 2.7* This helped me grind through some concepts that have eluded me for years and held me back from progressing on guitar, as well as from communicating effectively with other musicians. Stick with it through the first section, really drill it, and then it all just builds on that foundation. You can do it! ### 5/5 — Just completed the course!!! *2018-09-04, version 2.7* I just completed all 5 stages of the theory and done all the exercises. It was a great experience and I highly recommend it to anyone interested in learning music!!! ## Frequently asked questions about Music Theory by Musicopoulos ### What does Music Theory by Musicopoulos do? This app provides structured music theory lessons combined with matching exercises to help users learn and practice various musical concepts. It aims to develop both theoretical knowledge and ear training skills. ### What are the key features of this music theory app? Key features include structured lessons on intervals, scales, chords, key signatures, and more. It also offers ear training with a piano sample and allows input from instruments like piano, guitar, and violin. Sight reading practice is also included. ### Is Music Theory by Musicopoulos free to use? Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, suggesting a completely free experience for users. ### What instruments can I use for input in the app? The app supports input from several instruments, including Piano, Guitar, Bass Guitar, Violin, Viola, and Cello. This allows users to practice with their preferred instrument. ### Who is this app designed for? This app is designed for anyone learning to play an instrument or seeking to deepen their understanding of music theory. It is beneficial for both beginners and experienced musicians looking to strengthen their musical knowledge and ear. ## Version history (last 5 releases) ### 2.8 — 2020-10-18 - Resolved navigation layout issues - Resolved incorrect lesson reference image scale ### 2.7 — 2017-09-06 Refreshed interface. Bug fixes and enhancements. ### 2.6.1 — 2013-10-17 - Resolved issue with exercise 4.1 Inverted Intervals - 4 Inch display support - Minor bug fixes and enhancements ### 2.06 — 2013-04-07 People who bought the original version of Musicopoulos will know that the 2.0 update was a huge leap forward. We added so many new features and exercises! It is essentially a new app offered as a free upgrade. We took a moment to review the release and make a few tweaks and enhancements. We also resolved some minor bugs that may have been annoying. As a quick summary, we have: - tweaked the interface elements so that they are easier to view and understand - optimised the stats engine - Resolved an issue with screen flickering - Many other minor tweaks and enhancements ### 2.05 — 2013-02-28 Minor bug fixes and enhancements - Fixed exercise 2.3 access (iPhone only) - Fixed alignment of Key Signatures in the Sight Reading Module - Fixed bug reading in summary statistics - Other bugs fixes and tweaks ## Apps similar to Music Theory by Musicopoulos | App | Rating | Price | Category | | --- | --- | --- | --- | | [Earworm: Ear Training w/ Riffs](https://appshunter.io/ios/app/earworm-ear-training-w-riffs/id1662701173) | 5.0 (6) | Free | Education | | [NoteWorks](https://appshunter.io/ios/app/noteworks/id546003758) | 3.9 (155) | $4.99 | Education | | [GuitarNotes - Master Fretboard](https://appshunter.io/ios/app/guitarnotes-master-fretboard/id492150266) | 4.7 (220) | $2.99 | Education | | [Music Theory and Ear Training](https://appshunter.io/ios/app/music-theory-and-ear-training/id1478150970) | 3.2 (5) | Free | Education | | [Music Theory - Chords in Keys](https://appshunter.io/ios/app/music-theory-chords-in-keys/id849923063) | 3.6 (5) | $3.99 | Education | | [Fretzl - Guitar's Language App](https://appshunter.io/ios/app/fretzl-guitars-language-app/id6449849362) | 5.0 (6) | Free | Education | ## More apps by SpartanApps - [Vocal Warm Up by Musicopoulos](https://appshunter.io/ios/app/vocal-warm-up-by-musicopoulos/id467571560) - [Metronome by Musicopoulos](https://appshunter.io/ios/app/metronome-by-musicopoulos/id691690600) - [Ear Training by Musicopoulos](https://appshunter.io/ios/app/ear-training-by-musicopoulos/id711826901) All apps by SpartanApps: https://appshunter.io/developer/319290365 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*