Ring Roll

A progression on the seven lanes of a ring, one per ring position from the cut: each chord a run of cells, filled for the ring's notes, ticked where a note is bent, dashed across a gap and hollow for a foreign chord. Common tones between neighbours are bridged into connected bands, the hinge lane is tinted, runs that straddle the cut are split with tie marks and a re-cut phrase gets its own lane labels. One column per chord or width by beats; columns are clickable.