Jazz Progression Trainer vs Reharmonizator

Jazz Progression Trainer is a practice tool designed for jazz musicians who want to internalize chord progressions by ear. Play along with a full rhythm section Listen to a real piano, walking bass, and drums as you practice. Each progression is performed at your chosen tempo, looping continuously so you can focus on your instrument. Progressions included Major II-V-I Minor II-V-I Jazz Blues (12-bar) Minor Blues (12-bar) Rhythm Changes (AABA, 32-bar) All 12 keys Transpose any progression instantly to any key. Build fluency across the entire harmonic universe. Adjustable tempo Set the BPM anywhere from 60 to 300. Start slow, build confidence, then push the speed. Visual chord guide The current chord is highlighted on screen as the progression plays, so you can always see where you are in the form. Whether you're a beginner learning your first turnaround or an advanced player drilling changes at 240 BPM, Jazz Progression Trainer keeps up with you.

Harmonizator is a professional chord chart editor and reharmonization engine for musicians, composers, and jazz students. BUILD YOUR CHART Enter any chord progression using the intuitive chord builder or tap notes on the piano keyboard — the app detects the chord automatically. Supports all chord types: triads, seventh chords, extended harmonies, slash chords, and more. ANALYZE YOUR HARMONY Get instant harmonic analysis of your progression: key detection, Roman numeral notation, chord function (tonic, dominant, subdominant), and II-V-I pair highlighting. REHARMONIZE WITH PROFESSIONAL TECHNIQUES Apply jazz reharmonization tools used by professional arrangers: Secondary dominants Tritone substitution Related II (ii-V) Modal interchange Bass change & inversions Hybrid / polychords Chromatic approach Parallel voicing Cadential 6/4 & Sus Backdoor dominant HEAR IT IN REAL TIME Play back your progression with Rhodes, Synth, Guitar, or Choir sounds. Adjust tempo, time signature, chords per bar, and individual volumes for chords, bass, and drums. ADD A MELODY Write, record, or generate a melody over your chord chart. Edit notes in a piano roll or view them on a staff. Export your work as a MIDI file.