Gather notes per time-column across lanes; draw one shared stem per voice (hands up / feet down) spanning the chord, so snare+hat on a beat share an up-stem. Ledger lines for notes above/below the staff (hi-hat on its ledger line, crash higher). Stems always clear the highest/lowest notehead; beams grouped per beat. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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