character string or number specifying which drum is to be played by
specifying one of the built in sounds. The default is "snare". Every kit includes at
least four pieces:
"kick"
"snare"
"hihat"
"crash"
If drum does not match any
of the options in this list, a random sound will be played.
kit
character string specifying which kit is to be used. The default is "acoustic."
Possible kits are:
"acoustic"
"hiphop"
"electro"
"beatbox"
"world"
"r2d2"
If kit does not match any
of the options in this list, a random sound will be played.
expr
An optional expression to be executed before the sound.