Adds a new instrument : "Handpan" to the programmable speaker for you to make music. It has 37 notes from F4 to E7.

All samples are exactly the same duration of 4 seconds or 240 ticks, or 192K sample at 48K sampling rate to make it easier to use !

Better used as a solo instrument for now because :

1) It is possible that the pitch of the samples be changed in the future to have a better tuning.

2) It is also possible that the label of the notes be a little off currently

Please feel free to point out mistakes or suggest improvement !