Production Tools
Chord Progression Builder
Load a preset progression or build your own by clicking chords, then put a bass line under it. Hit play to hear it through your browser, or export both as MIDI.
Chord progressions are sequences of chords that form the backbone of most songs. The I–IV–V–I is the foundation of blues and classic rock. I–V–vi–IV (the "four-chord song") is behind hundreds of pop hits. ii–V–I is the cornerstone of jazz. Knowing these by name lets you transpose them to any key instantly.
Key
BPM
Preset Progressions: Click to Load
Chord Palette: Click to Add to Progression
●White = major
●Purple = minor
●Amber = dominant (V)
●Gray = diminished
Your Progression
Use presets above or click chords from the palette to build your progression.
Bass Line