Interactive Tools
Piano Tools
Serial number lookup, chord builder, metronome, and cost calculator. All in one place.
Serial Number Lookup
Find the age and origin of your piano instantly.
Chord & Scale Builder
Build chords and scales interactively with audio playback.
Piano Chord Chart
Every chord on every root note, with the keys shown on a keyboard.
Circle of Fifths
Click a key to see its signature, scale and chords, and play them.
Online Metronome
Free in-browser metronome for practice.
Online Piano Tuner
Check how far your piano is from A440 with your microphone.
Tuning Cost Calculator
Estimate piano tuning cost for your instrument.