Theory Lessons
musictheory.net Music iPhoneiPadiPod touch
Theory Lessons is a paid Music app for iPhone and iPad by musictheory.net. Rated 4.4/5 from 126 ratings. Requires iOS 15.8. Updated April 21, 2026.
- Rating
- 4.4
- 126 ratings
- Price
- 2.99 USD
- on the App Store
- Size
- 4 MB
- Age 4+
- Updated
- Apr 21
- 2026 · v3.2.1
Screenshots
About Theory Lessons
Theory Lessons features 39 music theory lessons from musictheory.net, 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
Ratings & reviews
4.4
126 ratings
What’s new
Version 3.2.1 · Updated April 21, 2026
- Fixes an issue where opening a link to a lesson could fail. - Updates the app icon used in Dark, Clear, or Tinted modes. - Fixes an issue where the wrong image would show in "The Staff, Clefs, and Ledger Lines". - Corrects typographical errors in "The Minor Scales", "Diatonic Seventh Chords", and "Roman Numeral Analysis: Seventh Chords".
App privacy
The developer, musictheory.net, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data, Other Diagnostic Data
Used for: App Functionality
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Theory Lessons | 4.4 / 5 (126 ratings) | 2.99 USD | April 21, 2026 | |
| Earpeggio | 4.9 / 5 (9,734) | Free | Oct 4, 2026 | Compare |
| Aural Wiz | 4.8 / 5 (638) | Free | Feb 5, 2024 | Compare |
| Piano Chords and Scales | 4.8 / 5 (9,280) | Free | Sep 9, 2026 | Compare |
| EarMaster - Music Theory | 4.6 / 5 (429) | Free | Oct 20, 2026 | Compare |
| Functional Ear Trainer | 4.9 / 5 (3,814) | Free | Sep 2, 2026 | Compare |
| Sight Reading Factory | 2.7 / 5 (391) | Free | Jun 3, 2026 | Compare |
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