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 IU (아이유) _ Good Day (좋은 날) _ MV. Tutti analyzed the YouTube audio to extract key E Major, 130 BPM. a progression of 45 chords. Check the progression, each chord's notes and practice tips, then play along with the cursor in the Tutti app.
“IU (아이유) _ Good Day (좋은 날) _ MV” runs at 130 BPM in 4/4, in E Major. The chart spans 189 bars and uses 45 distinct chords, changing roughly every 1.9 seconds.
27 of the chords need a barre (A#, A#m, A#m7, A#maj7, B, B6, Bm, Bm7, Bsus4, C#, C#7, C#m, C6, Cm, Cm7, Csus2, D#, D#7, D#dim, Esus4, F#m, F#m7, F7, Fm, G#, G#7, G#m7), so this sits at a advanced level.
Start around 91 BPM with a metronome and work up to 130.
Tempo drifts by about ±9.6 BPM — steady enough to practise to a click.
Dynamic range is 22 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: Vocals 28%, Drums 20%, Other 16%.
The vocal sits between B2 and E5 (centred on G♯4), which helps if you are picking a key to sing in.
The Roman numeral on each chord shows its function relative to the key, revealing the harmonic flow.