{"tonagi":{"app":"material curado","kind":"sequence","schema":1,"createdAt":"2026-10-04T09:00:00Z"},"content":{"id":"C45416B5-2970-5E48-9CED-7F64254C2974","steps":[{"note":"The app holds D under every step; play the upper note and tune it until it stops beating. Just on D: every degree is a pure interval.","rest":false,"notes":[50],"tuningId":"justo","tonicIndex":2,"durationUnit":"free","durationValue":1},{"rest":false,"notes":[50,52],"tuningId":"justo","tonicIndex":2,"durationUnit":"free","durationValue":1},{"note":"Major third: the pure one sits about 14¢ lower than the piano's.","rest":false,"notes":[50,54],"tuningId":"justo","tonicIndex":2,"durationUnit":"free","durationValue":1},{"rest":false,"notes":[50,55],"tuningId":"justo","tonicIndex":2,"durationUnit":"free","durationValue":1},{"note":"Perfect fifth: pure is almost the piano's (2¢ wider). No wobble.","rest":false,"notes":[50,57],"tuningId":"justo","tonicIndex":2,"durationUnit":"free","durationValue":1},{"note":"Major sixth: pure sits about 16¢ low.","rest":false,"notes":[50,59],"tuningId":"justo","tonicIndex":2,"durationUnit":"free","durationValue":1},{"note":"Major seventh over the tonic: low and calm here, unlike the melodic leading tone.","rest":false,"notes":[50,61],"tuningId":"justo","tonicIndex":2,"durationUnit":"free","durationValue":1},{"note":"Octave. Last note. Turn on Mirror and the sequence walks you back down.","rest":false,"notes":[50,62],"tuningId":"justo","tonicIndex":2,"durationUnit":"free","durationValue":1}],"title":"Cello · D major scale over a drone","embeddedTunings":[]}}