Major-scale field guide
Build the key.
Learn the path.
Turn key signatures into physical routes across your marimba, xylophone, vibraphone, or bells.
Today’s key
Bbmajor
Key signature2 flats
TonicB♭
Build the Scale
Build the Bb major trail from tonic to octave.
- —Degree 1
- —Degree 2
- —Degree 3
- —Degree 4
- —Degree 5
- —Degree 6
- —Degree 7
- —Degree 8
Choose a bar to begin the trail.
Instrument map
Two-octave percussion keyboard
Tap bars or use keys 1–g
Your route Revealed✓ Correct× Try again
This device
Your local skill cards
No account, no cloud. Cards document learning evidence—not permanent mastery.
BbNot startedStart trailEbNot startedStart trailFNot startedStart trailCNot startedStart trailGNot startedStart trailDNot startedStart trailANot startedStart trail