‘His/her’? I think the word you’re looking for is ‘their’. Btw, this is a from a British comedy show, and will mean nothing to anyone who hasn’t seen it, so may be a pointless post. Apologies, back to the topic at hand. I think the most important thing in band mixes is that everyone knows their place in the mix and their role. There is little worse than someone strumming a chordal rhythm part insisting they should be as loud as the lead melody.