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

What's New

Version 3.0.1

• Adds full support for iPhone X.

Customer Reviews

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.

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.

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!!!


Seller, LLC
3.7 MB
Requires iOS 9.2 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© 2011-2017, LLC


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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