I've got a situation here. My band (7 piece ska band) booked a day in the recording studio for January 27th with everyone agreeing that they could make it that day. In the past we always split the recording studio fees equally. Turns out 1 of our 2 trombonists can't make it to the recording session even after saying that he would be able to. We have the ability to record without him since we can have our 2nd trombonist do his parts for him. However, since we are all in a band collectively, do we have him pay his share of the recording studio fees? Link to my band's soundcloud for reference https://soundcloud.com/youandalltheblindpeople Thanks for your input guys!