{"tonagi":{"app":"material curado","kind":"sequence","schema":1,"createdAt":"2026-10-04T09:00:00Z"},"content":{"id":"41EF1350-7CF9-5CD1-8C19-033A80F69336","steps":[{"note":"The app holds C4. Each step adds one pure interval above it — play the upper note into it until the beating stops.","rest":false,"notes":[60],"tuningId":"justo","tonicIndex":0,"durationUnit":"free","durationValue":1},{"note":"Minor third (6:5) — pure is about 16¢ higher than the piano's.","rest":false,"notes":[60,63],"tuningId":"justo","tonicIndex":0,"durationUnit":"free","durationValue":1},{"note":"Major third (5:4) — pure is about 14¢ lower.","rest":false,"notes":[60,64],"tuningId":"justo","tonicIndex":0,"durationUnit":"free","durationValue":1},{"note":"Perfect fourth (4:3) — 2¢ narrower than the piano's.","rest":false,"notes":[60,65],"tuningId":"justo","tonicIndex":0,"durationUnit":"free","durationValue":1},{"note":"Perfect fifth (3:2) — 2¢ wider. No wobble.","rest":false,"notes":[60,67],"tuningId":"justo","tonicIndex":0,"durationUnit":"free","durationValue":1},{"note":"Minor sixth (8:5) — about 14¢ higher.","rest":false,"notes":[60,68],"tuningId":"justo","tonicIndex":0,"durationUnit":"free","durationValue":1},{"note":"Major sixth (5:3) — about 16¢ lower.","rest":false,"notes":[60,69],"tuningId":"justo","tonicIndex":0,"durationUnit":"free","durationValue":1},{"note":"Octave (2:1) — the same in every temperament.","rest":false,"notes":[60,72],"tuningId":"justo","tonicIndex":0,"durationUnit":"free","durationValue":1}],"title":"All instruments · Pure intervals over C","embeddedTunings":[]}}