no additional instruments available so far post your remix!
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I had such fun playing the bass on this, i came back to listen again & suddenly it occurred to me GarageBand has software keyboards & i could play them w/ my typing keyboard, something i never did before but was curious to try..
OK, now.. i've never played real keyboards except looking for the 2 or 3 notes that might sound ok on a friend's keys much less played a typing keyboard, so cut me some slack because it sucks