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.O.I (아이오아이) – '갑자기 (Suddenly)' (Official Music Video). Tutti analyzed the YouTube audio to extract key D# Major, 115 BPM. a progression of 14 chords. Check the progression, each chord's notes and practice tips, then play along with the cursor in the Tutti app.
The Roman numeral on each chord shows its function relative to the key, revealing the harmonic flow.