Auto-generated chord chart from YouTube analysis
Tutti is a free tool that analyzes a YouTube link or audio/video file to detect the key, tempo (BPM), time signature and chord progression, then builds guitar chord charts and TAB. Results are shown with a playback cursor so you can play along.
A chord progression lists the chords in the order they change. At each chord name (e.g. G, Em, C), fret that chord and strum in time.
Guitar chord chart for Unread Message (답장을 보낸지). Tutti analyzed the YouTube audio to extract key D Major, 100 BPM. a progression of 19 chords. Check the progression, each chord's notes and practice tips, then play along with the cursor in the Tutti app.
“Unread Message (답장을 보낸지)” runs at 100 BPM in 4/4, in D Major. The chart spans 97 bars and uses 19 distinct chords, changing roughly every 1.8 seconds.
Part A, the most repeated section, loops Em → Em7 → A7 → A7 → D7 → G → G → Bm — ii–ii–V–I–IV–vi in scale degrees.
5 of the chords need a barre (Bm, Bm7, Cm, Cm6, D#dim), so this sits at a advanced level.
With a capo on fret 7 you can play it with D · D7 · Dm · Dm7 · E7 · Em … shapes instead — 15 of 19 become open chords.
Start around 70 BPM with a metronome and work up to 100.
Tempo drifts by about ±9.9 BPM — steady enough to practise to a click.
Dynamic range is 19 dB — a moderate swing between soft and loud passages.
The first chord lands at 2s, so there is a short intro before you come in.
Balance of the mix: Bass 29%, Vocals 27%, Drums 20%.
The vocal sits between C3 and G4 (centred on B3), which helps if you are picking a key to sing in.
| Part | Starts | Bars | Plays | Progression |
|---|---|---|---|---|
| Part A ★ | 0:01 | 1–8 | 13 | Em → Em7 → A7 → A7 → D7 → G → G → Bm |
| Part B | 0:20 | 9–12 | 1 | G → D → D#dim → Em7 → A7 → A7 → Am → Am7 |
| Part C | 0:30 | 13–16 | 4 | G → B7 → Em7 → A7 → D7 → Gmaj7 |
| Part A ★ | 0:40 | 17–24 | 13 | Gmaj7 → D → Em7 → A7 → A7 → D7 → Gmaj7 → D#dim |
| Part D | 0:59 | 25–28 | 2 | G → Bm7 → Em7 → C → G → G → Cm6 → D7 |
| Part E | 1:08 | 29–32 | 2 | D7 → Am7 → G → G → Cm6 |
| Part F | 1:18 | 33–36 | 2 | D7 → G → D7 → Em7 → G → A7 → A7 → D7 |
| Part A ★ | 1:28 | 37–40 | 13 | G → Em7 → A7 → A7 → D7 |
| Part C | 1:37 | 41–44 | 4 | G → B7 → Em7 → A7 → Am → Dm → D7 |
| Part A ★ | 1:44 | 45–48 | 13 | G7 → D7 → Em7 → Em7 → A → A7 → D7 |
| Part D | 1:52 | 49–52 | 2 | G → Bm → C → G → G → Cm → Cm6 |
| Part E | 2:01 | 53–56 | 2 | D7 → Am7 → G → G → Cm6 → Cm |
★ most repeated — likely the chorus
The Roman numeral on each chord shows its function relative to the key, revealing the harmonic flow.