There will be drum machine, yes.

Easy to learn rock songs.

Will try, should be doable at least for easy songs. I wonder how the real bands can practice in an improvised way, where there are no charts, and you don't know who's going to switch to which chord and when.

What is the easiest way to track where we are in the song, not to wander off the chords that we're supposed to play? What are some of the basic bass 'progressions' after playing the single note?

Machines are brand new. Guitar went out of tune even quicker before luthier replaced machines, nut and frets. It wasn't me doing the servicing, so he also said he put the bridge where it needs to be, and he marked the spot with a marker. I can experiment a bit to see if it moves while playing.

The photo might indeed be tricky to gauge where exactly it is. Luthier told me the position is where it needs to be.