Key presses are [usually]
noted as follows:
U = Up on D-pad
D = Down on D-pad
L = Left on D-pad
R = Right on D-pad
A = A button
B = B button
C = C button
Ls = Left Shift
Rs = Right Shift
P = Play/Pause (P) button
X = Stop (X) button
Multiples of the same keypress
will sometimes be represented with a multiplication symbol "x". Example:
Ax9 = press the "A" button 9 times.