Hypothetical question:

Suppose you're playing rhythm guitar to accompany another instrumentalist who is playing a lead. And suppose the lead player is not doing a good job on maintaining a steady tempo.

What's the accompanist's responsibility here? To keep changing tempo as needed to follow the leader - as you might with a singer who was deliberately changing tempo for expressive purposes? Or to stick to a solid rhythm in the hopes that it will help the lead player get back in the groove?

Marion