Play An Instrument on Youtube

Human Drum Machine
(Wait for the whole video to download for instructions to make sense.)

Instructions on how to play the "instrument" on YouTube by "MysteryGuitarMan"
KEYBOARD (as in your computer keyboard)
Button instruments: 2, 3, 4, 5
Effects: 6, 7, 8

Interactive YouTube Keyboard

(NOTE: Video must be on Play to play it.)
Samples
Harry Potter theme by Schtekern
3-6-876-09-7-6-87-56-3

Star Wars theme by rap000man
1 5 4 3 2 8 5 4 3 2 8 5 4 3 2