Was wondering if anyone knows how I should approach this. Basically I co-wrote the songs in a band that has gone behind my back and replaced me. I'm mainly thinking about the bass lines that have my style all over them. I'm happy for them to use the parts I've already recorded with them to save them the hassle of re-recording but the new bass player hasn't bothered writing his own parts in rehearsal videos of unrecorded songs posted on facebook. I know they're scheduled to record soon but I really don't think they should be recording my take on the bass lines.