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 I Wonder. Tutti analyzed the YouTube audio to extract key C# Major, 100 BPM. a progression of 10 chords. Check the progression, each chord's notes and practice tips, then play along with the cursor in the Tutti app.
“I Wonder” runs at 100 BPM in 4/4, in C# Major. The chart spans 81 bars and uses 10 distinct chords, changing roughly every 3.2 seconds.
Part A, the most repeated section, loops G# → C# → C# → A#m → A#m → F# → F# → G# — V–I–vi–IV–V in scale degrees.
10 of the chords need a barre (A#m, A#m7, C#, D#m, D#m7, F#, F#maj7, Fm, G#, G#7), so this sits at a upper-int. level.
With a capo on fret 1 you can play it with Am · Am7 · C · Dm · Dm7 · F … shapes instead — 10 of 10 become open chords.
Start around 70 BPM with a metronome and work up to 100.
Tempo swings by ±16.9 BPM, so follow the recording rather than a metronome.
Dynamic range is 17 dB — a moderate swing between soft and loud passages.
The first chord lands at 4s, so there is a short intro before you come in.
Balance of the mix: Bass 37%, Vocals 26%, Drums 26%.
The vocal sits between D♯2 and A♯4 (centred on D♯4), which helps if you are picking a key to sing in.
| Part | Starts | Bars | Plays | Progression |
|---|---|---|---|---|
| Part A ★ | 0:00 | 1–24 | 8 | G# → C# → C# → A#m → A#m → F# → F# → G# |
| Part B | 0:55 | 25–32 | 2 | G# → G# → G#7 → C# → C# → C# → A#m7 → A#m |
| Part A ★ | 1:14 | 33–48 | 8 | G# → C# → C# → C# → C# → G# → A#m7 → A#m7 |
| Part B | 1:53 | 49–56 | 2 | G# → G# → C# → C# → C# → A#m7 → A#m7 → A#m |
| Part A ★ | 2:12 | 57–80 | 8 | G# → G# → F# → F# → D#m7 → C# → C# → C# |
★ most repeated — likely the chorus
The Roman numeral on each chord shows its function relative to the key, revealing the harmonic flow.
