Si Epic Borrowed Chords
I – bVI – bIII – bVII progression in Si major
Si Epic Borrowed Chords — I – bVI – bIII – bVII
The B I–bVI–bIII–bVII (B – G – D – A) borrows three chords from the parallel Aeolian mode, creating an instantly cinematic, heroic atmosphere. Aeolian and Minor Pentatonic cover the borrowed chords; Mixolydian anchors the tonic. The Minor Blues scale adds gritty texture when the music calls for intensity. With seventh voicings (BMaj7 – GMaj7 – DMaj7 – A7), the modal mixture becomes even more grandiose.
Playing in Si major
B major mixes barre and open elements. The B chord itself is a barre at fret 2, but E and A are comfortable open chords forming the IV and V. The open B string rings as the root, allowing creative drone-based arrangements. B is a intermediate-level key on guitar because the open B string rings as the root and the open E strings provide the 4th — useful for sus4 voicings and drone effects. This key mixes open and barre shapes, making it a good intermediate challenge that builds fretboard fluency.
Voice Leading
The bass line moves through B to G (descending major third), G to D (descending perfect fourth), D to A (descending perfect fourth). The root motion by larger intervals (fourths and fifths) gives each chord change a strong, decisive character. When the progression loops, the bass returns from A to B by whole step.
Capo Transposition
To play in B using familiar open chords: capo 2 with open A shapes; capo 4 with open G shapes; capo 7 with open E shapes. Choose the capo position that gives you the voicings you prefer — lower capo positions produce a fuller sound, while higher positions create a brighter, mandolin-like timbre.
Scales for Soloing
B major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, B Mixolydian adds the flat seventh for an authentic blues-rock edge.
Strumming Pattern
Use D-DU-UDU at 100-120 BPM for a standard pop strum. Accent beats 2 and 4 for a backbeat feel. Vary dynamics between verse (lighter) and chorus (stronger) to build energy.