I–vi–IV–V (the ’50s progression) · F♯ major

F♯ – D♯m – B – C♯

IF♯ · F♯ A♯ C♯
viD♯m · D♯ F♯ A♯
IVB · B D♯ F♯
VC♯ · C♯ E♯ G♯

F♯ – D♯m – B – C♯: the doo-wop changes, under “Stand by Me” and a whole decade of ballads. In F♯ major they are I, vi, IV and V.

Smooth voicings — root in the left hand

The right hand takes whichever inversion is nearest, so it moves by a step or two instead of jumping.

F♯ I · root position

F♯1F♯1A♯3C♯5

1 · 3 · 5 over F♯ in the bass

D♯m vi · first inversion

D♯1F♯♭3A♯5D♯1

♭3 · 5 · 1 over D♯ in the bass

B IV · second inversion

B1B1F♯5D♯3

5 · 1 · 3 over B in the bass

C♯ V · second inversion

E♯3C♯1G♯5C♯1

5 · 1 · 3 over C♯ in the bass

Why it works

I and vi share two notes, so does vi with IV, and V leads straight back to I: the bass walks down a third, down a third, up a step and home.

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