DoReMi logoDoReMi

The complete source for
music theory.

From your first scale to advanced jazz harmony — everything you need to know, organized in one app, so you're never left wondering what you're missing.

App Store — Coming SoonGoogle Play — Coming Soon

DoReMi isn't available in app stores yet — stay tuned.

Three ways to learn. One complete system.

Each part of DoReMi does a different job — together, they turn theory you read into theory you actually know.

Lessons

Structured theory, in order — from your first scale to advanced jazz and harmonic theory. Every lesson explains not just what to play, but why it works.

DoReMi theory explanations list — chords, scales, intervals, sheet music, rhythm, circle of fifths
Every topic, in the right order
DoReMi Master track lessons — jazz piano foundation, improvisation, block chords, reharmonization
A Master track for jazz harmony

Dictionary

A complete reference you can return to any time. Look up any term, chord, or scale in seconds, and know you're getting the full picture — not a fragment of it.

DoReMi dictionary — chords, scales, intervals, circle of fifths, chord progressions, sheet music
Every chord, scale and interval
DoReMi Master reference — chord voicings, scale–chord reference, jazz chord progressions
Voicings and a 40-scale reference

Gym

Ear training and practice drills that turn what you learned into a skill you actually have. Progress tracking shows you exactly what to work on next.

DoReMi gym drill — a Db7 chord on the piano with compatible scales to choose from
Match scales to the chord you hear
DoReMi chord recognition setup — twelve chord types, play style, accidentals and instrument
Set up every drill your way

Learn a concept in Lessons. Confirm it any time in the Dictionary. Make it second nature in the Gym. That loop is how DoReMi turns theory into real musical understanding.