Nashville Number System Converter
Convert chord progressions to Nashville numbers and back for any key.
Overview
The Nashville Number System Converter translates chord progressions between named chords and the number system used by session players in Nashville and beyond. Type the key followed by your chords (separated by spaces or bars) to get the numbers, or type numbers to expand them into chords for that key. It preserves chord qualities like minor, diminished and seventh, making it easy to transpose charts, communicate progressions, and learn how songs are built.