This might be interesting - we produce a lot of show tracks. Mostly used as click tracks in stage type shows - for where you need extra musical parts you simply cannot do live, or as emergency tracks where a band member might simply be unable to sing due to illness - the usual coughs and colds, or where simple medical issues make certain thing impossible.

I produce lots of copies of songs mainly for theatrical or stage type shows. Over the years I have a pretty standard workflow, but while doing one today, I wondered if others do it my way or have their own system that might be better?

I always use the original song as a template. I tend to do the trickier bits in short chunks. So playing along with the real thing is pretty critical.