Maqam Calligraphy
A living Arabic taqsim — a free-meter solo that wanders in exact microtonal cents and writes itself as a luminous calligraphic line, so you can see the quarter-tones sit between the piano's cracks.
Choose a starting maqam. Once begun, it plays a full self-developing taqsim hands-free for about five and a half minutes — opening low at the qarar, reaching the ghammaz, modulating to a related maqam at the peak, then descending home.