DRUMS- https://scratch.mit.edu/projects/2728243/
PIANO- https://makeymakey.com/piano/
GUITAR- https://scratch.mit.edu/projects/17460370/
TRUMPET- https://scratch.mit.edu/projects/96419804/
VIOLIN- https://scratch.mit.edu/projects/66718408/
FLUTE- https://scratch.mit.edu/projects/65689420/#editor