A mature guitarist understands that playing well with others means knowing where NOT to play. If you want to lock in with a bassist and drummer — or jam with a friend — stay clear of the bass notes and frequency range. This is the moment you move beyond bashing out big open chords and pounding the same rhythm. Nothing screams "amateur" and derails a groove faster than a guitarist trampling all over the bass line, forcing the bassist to awkwardly shift octaves or rewrite their part on the fly — only for you to drift into their new range a moment later. Don’t be that player. Let the music breathe. Create space. Serve the song. This is how you stop just “playing guitar” and start making music. See the book Contemporary Chord KHANcepts for more.