Tap a Jam

Hints:
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Submitted by: Sule

Track 1:a
Track 2:d
Track 3:g
Track 4:j

it's a simple button to press


Recommended keymapping:
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Set track 1 to [Up], track 2 to [Down], track 3 to W, and track 4 to S.
By doing this, you only need press [Up], [Down], and W or S. You can 
only press W or S and do not need to press both of them. 
For example, when you need to press W you can press S. You can change 
tracks 3 and 4 to other letters but do not change 1 and 2.