Public-domain demo

Try the waterfall before you upload anything.

This short C major etude is here so beta invites, landing-page clicks, and product demos can reach a playable room instantly.

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Practice studio

C Major Step Etude

The waterfall answers the core question in real time: what key do I press now, and what lands next?

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Waterfall-first practice
Live waterfall
Follow the note to the key.
0:00 / 0:11
Play line
C
D
E
F
G
A
B
C
D
E
F
G
A
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C
D
E
F
G
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C
D
E
F
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A
B