:KLEF Piano for the BBC micro:bit (Kitronik 5631)

A cleverly made PCB in a shape resembling a piano. Touch keys - you have to insert micro:bit and you can have fun (after uploading the appropriate code).

Detailed instructions on the manufacturer’s website

Set includes:

The product consists of only the piano, the micro:bit must be purchased separately. It works with microbits in both version 1 and 2.