12-Bar Quick Change · Blues

B7 · E7 · B7 · B7 · E7 · E7 · B7 · B7 · F#7 · E7 · B7 · F#7

I7 · IV7 · V7 in the key of Bm

Twelve bars and three chords, underneath more songs than anyone can count. The quick change is the early move up to the four chord, right in the second bar.

Four bars of 12-bar quick change in the key of Bm, written I7 · IV7 · V7 and played quarters over a backbeat groove at around 104 beats per minute. The chord shapes are below, and you can hear the whole thing play (and slow it down) without an account.

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How it should feel

Strum

Quarters

Groove

Backbeat

Tempo

104 bpm

Key

Bm

Voicings

Low & Wide

Open-voiced shapes down the neck — wide, ringing, cinematic.

The shapes

Low E on the left, high e on the right. 0 is an open string, × is one you do not play.

More Blues

• Fm7 · Fm7 · Fm7 · Fm7 · Bbm7 · Bbm7 · Fm7 · Fm7 · C7 · Bbm7 · Fm7 · C7 i7 · iv7 · V7 in F · Minor 12-Bar
• B7 · B7 · B7 · B7 · E7 · E7 · B7 · B7 · F#7 · E7 · B7 · B7 I7 · IV7 · V7 in B · 12-Bar Slow Change
• B7 · F#7 · E7 · E7 · B7 · F#7 · B7 · F#7 I7 · V7 · IV7 in B · How Long (8-Bar)
• B7 · E7 · B7 · B7 · E7 · E7 · B7 · B7 · F#7 · E7 · B7 · F#7 I7 · IV7 · V7 in B · 12-Bar Quick Change

Posted Nov 10, 2026. Part of a growing library of guitar chord progressions.