Thrash Riff
i5 — ♭II5 — i5 — ♭VII5
Chromatic power chord riff
Genre
Metal chord progressions
Heavy guitar music with power chords and modal harmony
What makes it sound like this
Harmonic fingerprints.
- Power chords
- Chromatic riffs
- Modal scales
- Drop tunings
Where it lives
Common keys.
The tonal centres metal keeps coming back to — usually because they sit well on the instruments the style was built on. Each key page carries its full diatonic chord set, and links its relative minor for the darker corners of the genre.
3 progressions
The changes metal runs on.
Written in roman numerals, then spelled out in the key of C. Every chord links to its own page; where the pattern has a full progression page of its own, that link is on the card.
Vocabulary
The chords that define the sound.
Not just which qualities metal reaches for, but those qualities built on the roots the genre actually plays in. Every chord links to its shapes, audio, and voice-leading notes.