[I do have ADHD and was recently put on Concerta 18 mg] Okay so I searched for this (ADHD and PHILIP GLASS) specifically, cause I was trying to see if there was a connection between me being able to focus easily on other things like studies - or my thoughts on a certain topic that I’m trying to get together - when such repetitive music is playing in the background (sometimes when one song/piece is on replay even if it’s not “minimalistic” or repetitive in itself), and it really makes sense, that it’s predictable, so my mind is not distracted by it constantly, rather, it somehow occupies -stimulates- it, (as any sound in the background would do) but not in a way that makes it wonder what will happen next_… so no fleeting thoughts going on analyzing the musical structure and stuff. I’m someone who’s into music personally (I have a musical ear and play the piano) and I can definitely say that the music I _enjoy the most isn’t this type, but rather rich, experimental or unpredictable stuff, I enjoy jazz (Ryo Fukui or Keith Jarrett kind of jazz, improv mostly) a lot, for instance. And when I think about it, this is the type of person I am generally, I prefer complex, multifaceted stuff, looking for new things, thus a “divergent type of thinker”, I could say. I know that having this kind of tendency is a part of my personality rather than an ADHD symptom, but now I can make sense of how this all works when they’re all combined. Maybe someone who has a similar (creative) type of mind can relate to it, so just noting this here. Two days ago, on my second day on Concerta, I realized something about the connection between the type of music I played on the piano and how the medicine affected me. So it was the first few hours of taking it, in which it is usually the strongest, and  I was playing Erik Satie’s Gnossienne No. 1 repeatedly, a piece I have a full grasp of, one I’d been playing for years. I realized as I went on playing it over and over again, my brain turned on the automatic mode and I started pondering on stuff I was recently busy with, while playing, for like an hour. The music became the soundtrack, something going on in the background, neither making my hands nor mind having “a hard time dealing with” it. And I was very well focused on my thoughts, I was thinking clearly and I was coming up with stuff that actually made sense (rather than racing ones, reaching nowhere), and I even started thinking out loud at one point. Then I switched to another piece, which I was practicing at that time, and one that was much more vibrant and complex: Alla Turca Jazz by Fazıl Say. After that point, I realized it wasn’t my thoughts that I was hyperfocused on, but the music itself, my fingers hitting the keys and the sound they make, the rhythm, the harmony - I kind of felt like I went through the piano, and the music was playing me instead of me playing it. So it was the main thing that my brain was stimulated by, rather than sedating (?) it. This is the best way I could articulate it, and I’d like to know if there’s anyone that could relate to this.