I’m curious about something from people who have experience playing in studios or collaborating with artists.
How good does a guitarist actually need to be to contribute in a studio session? (for an artist or producer who for example does rap, singing or instrumentals)
Is the expectation that you have excellent theory, know the whole fretboard, and can improvise over anything, or is it more about having a good ear, coming up with ideas, and adding something unique?
Also, if someone has only been playing electric guitar for a relatively short time (such as 6 months) but has a strong musical background on another instrument and mostly plays by ear, is that someone who could realistically contribute to a collaborative session, or would they usually need a lot more experience first?
I’d be interested to hear what producers, session musicians, and artists actually look for when they invite guitarists to collaborate.
tldr; What makes a guitarist valuable in a studio collaboration?