Si Classic Rock Loop

I – ♭VII – IV progression in Si major

Chords
Triads7th Chords
Harmony
Originalii–V–ISec. Dom.
ISi
♭VIILa
IVMi

Triad Diagrams — Si Classic Rock Loop (Guitar)

Si Classic Rock LoopI – ♭VII – IV

The B Classic Rock Loop (B – A – E) draws its rebellious energy from the borrowed ♭VII chord — a hallmark of Mixolydian mode. Mixolydian Pentatonic outlines the riff cleanly; Minor Blues adds the grit that has powered this three-chord formula since the 1960s. Major Blues works as a brighter alternative for country-rock phrasing. With seventh chords (BMaj7 – A7 – EMaj7), the soulful, bluesier character takes over.

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 A (descending whole step), A to E (descending perfect fourth). The mix of stepwise and leap motion balances smoothness with harmonic drive. When the progression loops, the bass returns from E to B by perfect fourth.

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

Drive with all downstrokes at 140+ BPM for raw punk energy, or use D-D-DU-UDU for classic rock. Palm mute the verse and open up the strumming on the chorus for dynamic contrast.

Pop / RockEnergy & Drive4/4 · 4 bars

Chords (triads): Si, La, Mi.

Chords (7th): SiMaj7, La7, MiMaj7.

Famous songs using this progression

  • Gloria – Them (Van Morrison)
  • More Than A Feeling – Boston
  • La Grange – ZZ Top
  • Sweet Home Chicago – Traditional