Music theory practice tools

Five questions, one attempt, every day. Same puzzle for everyone — share your score.

Arcade note-naming for young musicians — zap the note before it reaches the clef.

Read notes on the treble staff — piano, violin, flute, guitar.

The bass staff — for bass, cello, trombone, left-hand piano.

The viola player's clef — C clef on the middle line.

Upper registers of cello, trombone, and bassoon.

All major and minor key signatures, on every clef.

The seven modes: Ionian, Dorian, Phrygian, Lydian, and more.

Calculate any mode; see the 7 relative modes of a key signature.

Chord-scale reference by chord quality, for improvisation.

Chord extensions and alterations — b9, #11, 13th from any root.

Moveable-do solfège with chromatic alterations, in any key.

Tonic, Dominant, Leading Tone — all 8 scale-degree names.

Identify the note a given interval above — spelling matters.

Identify the note a given interval below — spelling matters.

Tap the beat, see your timing in milliseconds — and survive the silent bars.

Accurate metronome with tap tempo, subdivisions, and time signatures.

Identify all 13 intervals by ear, low to high.

Identify all 13 intervals by ear, high to low.

Identify intervals by their color when both notes sound together.

Major, minor, diminished, augmented triads by sound.

Maj7, Dom7, Min7, Half-Dim, Dim7 — by ear.

V7/ii, V7/V, V7/vi and more, in all keys.

Extensions of V7 chords relative to their tonic keys.

Tritone subs for dominant 7th chords — key reharmonization.

The most important progression in jazz, in all keys.

Generate progressions to practice — choose qualities and length.

Generate and analyze twelve-tone matrices — P, R, I, RI forms.

Interval-class vectors for any pitch-class set.

Invert a melody around any axis — note names or integers.

The six all-combinatorial hexachords and their properties.

Concert-pitch transpositions for orchestral instruments.

The Circle of Fifths, mnemonics, and flashcard practice.

EGBDF and FACE mnemonics — for beginners.

GBDFA and ACEG mnemonics — piano left hand.

FACEG and GBDF mnemonics — for viola.

DFACE and EGBD mnemonics — cello, bassoon, trombone.

Sight-singing with Do Re Mi in any key, with chromatics.

Interactive chart for trumpet, horn, sax, clarinet.

All 8 technical names, with etymology and memory tricks.

How the circle works and how to actually use it, key by key.

Notes above and below the staff — landmarks and octave tricks.

All 15 scales, the patterns that connect them, and the degree-4/degree-7 secret.

Tempo-building routines that actually work, from a professor.

Stem direction rules for hand-notating — the middle-line rule, chords, beams & voices.

Ewell’s ‘white racial frame,’ the case for the world’s musics, and the debate.

Interactive diagram of key relationships and signatures.

FCGDAEB and BEADGCF, with mnemonics.

Interactive keyboard for all 12 major scales (W-W-H-W-W-W-H).

FACE, Every Good Boy Does Fine, and more for all clefs.

Identify intervals using familiar songs, with audio.

Reveal or spin a random note — a classroom warm-up & scale-test tool.

Books, apps, and tools we genuinely recommend.

In-depth textbook reviews, beginner to graduate.

Top pick, budget pick, and upgrade pick — from a professor's studio.

The stands that survive classrooms, and the ones that don't.