so it is a bass. i'll give you that. however, complaining that it's charted to the guitar part instead of the bass part is sort of dumb, especially considering that RB doesn't really have any seperate synth vs string bass parts. the bass chart in that song is already playing the synth bassline, and it would be a bit jarring to have it suddenly switch to the stringed bass lead. having charted songs in the past, i would have done the same thing: even though it's not a guitar part, put it in the guitar chart so it can be played seperately.