Si Rock & Folk Classic

I – IV – V progression in Si major

Chords
Triads7th Chords
Harmony
Originalii–V–ISec. Dom.
ISi
IVMi
VFa♯

Triad Diagrams — Si Rock & Folk Classic (Guitar)

Si Rock & Folk ClassicI – IV – V

The B I–IV–V (B – E – F#) is three chords and the truth — the foundation of rock, country, and folk. The Minor Blues scale clashes productively against these major chords, producing the essential blues-rock tension. Add Mixolydian for a modal edge, or stay on Major Pentatonic for clean melodic runs. With sevenths (BMaj7 – EMaj7 – F#7), the bluesy character intensifies.

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 E (ascending perfect fourth), E to F# (ascending whole step). The mix of stepwise and leap motion balances smoothness with harmonic drive. When the progression loops, the bass returns from F# 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, Mi, Fa♯.

Chords (7th): SiMaj7, MiMaj7, Fa♯7.

Famous songs using this progression

  • Twist and Shout – The Beatles
  • La Bamba – Ritchie Valens
  • Wild Thing – The Troggs