Write better chord progressions.
Go from a blank page to a playable progression, understand why it works, smooth the voicings, and move it into a new key. No account. No setup. Every chord is clickable and playable on piano.
Ear training practice
Build practical aural skills with short, focused drills for intervals, piano chords, scales, and individual notes.
Recognize piano chords by ear
Compare major, minor, seventh, suspended, diminished, and extended chord colors.
Start chord ear training → IntervalsHear musical distance
Build relative-pitch accuracy with replayable ascending and descending interval questions.
Practice intervals → ScalesIdentify scale patterns
Read note sets and formulas, answer quickly, and connect visual scale shapes to playback.
Take the scale quiz → PitchTrain note recognition
Practice pitch identity and build faster recall without requiring perfect pitch.
Practice notes →One compact workflow
Each tool answers one practical question and passes naturally to the next. Start wherever your song is stuck.
Which chords fit this key?
See diatonic triads, seventh chords, extensions, and useful borrowed chords in any major or minor key.
Open key explorer → 02 · GenerateGive me a progression to start from.
Choose a key, genre, and mood. Get real chord names, Roman numerals, and bass-movement guidance.
Generate chords → 03 · RefineHow can these chords move smoothly?
Turn chord symbols into practical keyboard or SATB voicings with less motion between voices.
Optimize voicings → 04 · ModulateHow do I move to another key?
Compare two keys, find shared chords, and hear several transition paths at your chosen tempo.
Plan a key change →Built for making music, not browsing a catalog.
Progression Helper now concentrates on chord progression decisions. The smaller set keeps the experience learnable while covering the full path from harmonic idea to arrangement.