Tuner
The TUNER block — sing (or wire any monophonic sound) and watch the pitch glide onto the glowing note-rows in real time, the detected note + cents shown live (the kernel's YIN). Shape the CORRECTION by grabbing the picture of the pitch — drag the contour toward the scale, deviation-preserving — not a hidden retune knob. Load a recorded take to edit its notes as blobs, then play the edit on the Clock. Measurement + sculpting, straight from the source signal.