[linux-audio-user] Standalone hardware music making box suitable for children?

Hello. What would be a good standalone music making box?
A box which would be useful for a child, for her first 16 years.
Features:
 -Linux connection (midi, sample uploads)
 -One shot samples (for sound effects)
 -Music instruments (sampled or synth)
 -Music making (patterns whatever)

I know there are some kind of groove boxes but don't know details.

Juhana

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