{"tonagi":{"app":"material curado","kind":"sequence","schema":1,"createdAt":"2026-10-04T09:00:00Z"},"content":{"id":"B63B115C-7B71-5075-BEBE-C2F4A7E8CD8E","steps":[{"note":"Lip slurs in first position (B♭2–F4). Just on B♭ shows where the natural partials really sit.","rest":false,"notes":[46],"tuningId":"justo","tonicIndex":10,"durationUnit":"free","durationValue":1},{"note":"A fifth above: the natural partial is pure (2¢ above the piano).","rest":false,"notes":[53],"tuningId":"justo","tonicIndex":10,"durationUnit":"free","durationValue":1},{"rest":false,"notes":[58],"tuningId":"justo","tonicIndex":10,"durationUnit":"free","durationValue":1},{"note":"5th partial (the major third): naturally about 14¢ low — that is the pure third, not a fault.","rest":false,"notes":[62],"tuningId":"justo","tonicIndex":10,"durationUnit":"free","durationValue":1},{"rest":false,"notes":[65],"tuningId":"justo","tonicIndex":10,"durationUnit":"free","durationValue":1}],"title":"Trombone · Natural harmonic series","embeddedTunings":[]}}