https://makeprojects.com/project/matr...
00:10 Take a USB-Keyboard
00:15 Attach belt around the keyboard
00:21 Build a Raspberry Pi3 + 3,5" Touchscreen in a box
00:25 Take a speaker with 3,5mm audio in
00:31 Powerbank
00:35 2 pcs rubber band
00:38 USB-Micro cable
00:41 3,5mm audio cable
00:45 Do it all together
01:06 Download Matrix Piano and open in Google Chrome
01:11 And now..
01:15 Play baby play..!