Q: how do you know what chord to play after another so that it fits on the song you're playing? (talkin about chord progression)
A: it's the same as knowing what words you say after each previous word, in the sentence you are saying. i actually don't know.... how do we do that? surely you didn't spend time thinking about each word...... there's this part of our brain that does this stuff. i think it might be the Language department