Practice Room

Real-time MIDI analytics — chord drills, scale runs, free play.

MIDI…
00:00
Activity
Target
C Major
C · E · G
C3
C4
C5
Simultaneity
—
play a chord
Velocity
—
no notes yet
Timing (IOI σ)
—
needs more notes
Pedal
UP
0 events
Focus
100%
0 on · 0 off
Notes Played
0
—
How it works: Connect a MIDI keyboard (Chrome / Edge / Opera — Safari isn’t supported), pick an activity, hit Start. Metrics update live as you play. Free Play just shows what you’re doing — no scoring.Tip: you can still explore the UI without a MIDI device — but metrics need real input to update.

Related Tools

Chord Drill
Timed 10-chord drill sessions with hint progression.
MIDI Monitor
Raw MIDI message stream for diagnostics.
Chord Finder
Identify any chord from notes.
Circle of Fifths
Interactive key relationships and diatonic chords.