World
Bulgarian Progression (I–♭III–IV–I) Chord Progression
Unique Eastern European/Bulgarian music progression.
- Bulgarian
- Eastern European
- folk
Roman numerals
- I
- ♭III
- IV
- I
Roman numerals give each chord’s position relative to the key’s tonic, so the progression sounds the same in any key.
Chords by key
Key of C
C – Eb – F – C
Key of G
G – A# – C – G
Key of D
D – F – G – D