21 Guns
Green Day — 21st Century Breakdown
Dm
A#
F
C
Dm
0:00 / 0:00
Chords used
Dm
A#
F
C
Scale chords · F major
IFMajor
iiGMinor
iiiAMinor
IVA#Major
VCMajor
viDMinor
vii°EDim
Key detection
experimentalF majoralgorithm result
AI analysisF major✓ agrees
1F major
100%
2A# major
59%
3C major
58%
4D minor
58%
5G minor
44%
6C minor
41%
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