When I work alone, it can be like dabbling with a canvas. Maybe you paint over bits, and it starts to form its own life and lead you off in a direction. It becomes an intuitive, subconscious process.
When Stevie and I joined the band, we were in the midst of breaking up, as were John and Christine. By the time Rumours was being recorded, things got worse in terms of psychology and drug use. It was a large exercise in denial - in order for me to get work done.
When I work alone, my process is like painting. With Fleetwood Mac, it's more like movie making.
After a couple of failed attempts, I came up with a weird tuning where I was dropping the G string down a step so that it became a seventh, and it got me to a place where I could play all these figures fairly easily. It was not an easy thing to work out.
I just find things that work and embellish them.