{"tonagi":{"app":"material curado","kind":"sequence","schema":1,"createdAt":"2026-10-04T09:00:00Z"},"content":{"id":"34288F49-4E0D-588B-871D-D7109057CDBC","steps":[{"note":"The app holds F under every step; play the upper note and tune it until it stops beating. Just on F: every degree is a pure interval.","rest":false,"notes":[65],"tuningId":"justo","tonicIndex":5,"durationUnit":"free","durationValue":1},{"rest":false,"notes":[65,67],"tuningId":"justo","tonicIndex":5,"durationUnit":"free","durationValue":1},{"note":"Major third: the pure one sits about 14¢ lower than the piano's.","rest":false,"notes":[65,69],"tuningId":"justo","tonicIndex":5,"durationUnit":"free","durationValue":1},{"rest":false,"notes":[65,70],"tuningId":"justo","tonicIndex":5,"durationUnit":"free","durationValue":1},{"note":"Perfect fifth: pure is almost the piano's (2¢ wider). No wobble.","rest":false,"notes":[65,72],"tuningId":"justo","tonicIndex":5,"durationUnit":"free","durationValue":1},{"note":"Major sixth: pure sits about 16¢ low.","rest":false,"notes":[65,74],"tuningId":"justo","tonicIndex":5,"durationUnit":"free","durationValue":1},{"note":"Major seventh over the tonic: low and calm here, unlike the melodic leading tone.","rest":false,"notes":[65,76],"tuningId":"justo","tonicIndex":5,"durationUnit":"free","durationValue":1},{"note":"Octave. Last note. Turn on Mirror and the sequence walks you back down.","rest":false,"notes":[65,77],"tuningId":"justo","tonicIndex":5,"durationUnit":"free","durationValue":1}],"title":"Oboe · F major scale over a drone","embeddedTunings":[]}}