Chords of: I will (잘할게) by: Lee Seung Gi. (E, D, Gmaj7, Bm7) are the main chords of the song. The chords are displayed instantly in real-time with a YouTube player, four synced views, instrument diagrams, loop practice and a built-in vocal-remover mixer.
“I will (잘할게)” by Lee Seung Gi is in D Major and runs at about 75 BPM, giving it a slow, laid-back feel. Our analysis found 23 different chords across 79 chord changes; the ones that carry the song are E, D, Gmaj7, Bm7.
D is the chord you will hold longest — roughly 15% of the 3:35 the chords were tracked for. The song opens with D → A → Gmaj7 → G6 → Gm → D → C#m → Bm7. Play the timeline above to hear each change land in real time.
Difficulty: advanced — 12 main chords with 14 extended, altered or slash voicings. Guitarists can play it as written — D Major sits in open-chord territory, no capo needed.
| Chord | Time held | Share |
|---|---|---|
| D | 0:32 | 15% |
| Gmaj7 | 0:27 | 13% |
| Bm7 | 0:17 | 8% |
| A/C# | 0:15 | 7% |
| E | 0:15 | 7% |
| C#m7 | 0:14 | 7% |
| F#m7 | 0:12 | 5% |
| Gm | 0:11 | 5% |
D – A – Gmaj7 – G6 – Gm – D – C#m – Bm7 – G – A – D – A/C# – C#m – G – Gm6 – D – A/C# – Gmaj7 – G6 – Gm – D – A/C# – Gmaj7 – Gm6 – D – Gmaj7 – A/G – F#m7 – Bm7 – Gmaj7 – A7/C# – F#m7 – D – D6 – C – Gmaj7 – A – F#m7 – A – Gmaj7 – D – A/C# – Bm7 – Gm6 – Gm – D – A/C# – Bm7 – …
