Jazz & Music Tools
Free, practical tools for every player and listener — find a tempo, work out note and delay times, spell a scale or mode, generate a jazz progression, read the circle of fifths, and look up the standards.
BPM Tap Tempo Calculator
Tap along with any track to find its tempo in beats per minute, averaged over your last taps, with the matching Italian tempo marking from Largo to Prestissimo
Note Duration Calculator
Enter a tempo to get the length of every note value in milliseconds and seconds — whole to thirty-second, dotted and triplet — plus the tempo-synced delay and reverb times
Scale & Mode Finder
Pick a root and a scale or mode — major, the three minors, all seven modes, blues and bebop dominant — for its correctly-spelled notes and scale-degree intervals
Jazz Chord Progression Generator
Choose a key and a progression — ii–V–I, rhythm changes, turnaround, 12-bar jazz blues, minor ii–V–i, or Coltrane changes — for the chord symbols and diatonic seventh chords
Circle of Fifths Explorer
Select a key to see its signature (sharps or flats and which notes), its relative minor, and its closely-related keys — the subdominant and dominant plus their relatives
Jazz Standards Key & Tempo Guide
A filterable reference of well-known jazz standards with their common key and typical feel and tempo — from ballads and medium swing to up-tempo, Latin, blues and jazz waltz