I’m used to getting new students at varying levels of skill and experience. Totally green players who are new to the instrument have the benefit of no bad habits— the down side is they don’t have any good ones either. More experienced students are proficient in some areas, but their study is usually imbalanced— and they’re less eager to learning (or relearning) certain techniques since they already have an understanding of what committed practice means. Eventually, I try to uniformly raise multiple aspects of playing and theory of my students; making sure they know their scales and modes in various keys, which modes to use over diatonic chords, popular progressions that their favorite tunes are based on, etc. Even with self study, most experienced players can get to this point by themselves, and will start to observe instances of audiation… or the ability to instinctually (and accurately) guess which tone or chord might come next, even if they’ve never heard the tune they’re listening to.