Theory Lessons
Theory Lessons Summary
Theory Lessons is a mobile iOS app in Music And Audio by musictheory.net. Released in Jan 2012 (14 years ago). It has 163 ratings with a 4.40★ (good) average. Based on AppGoblin estimates, it reaches roughly 496 monthly active users . Store last updated Apr 21, 2026
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4.4★
Ratings: 163
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App Description
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