I–IV–I–V in F♯ Major

Pattern: I – IV – I – V Chords: F♯ – B – F♯ – C♯

Chord Breakdown

Numeral	Chord	Type	Function
I	F♯ (details)	major	Tonic
IV	B (details)	major	Subdominant
I	F♯ (details)	major	Tonic
V	C♯ (details)	major	Dominant

Harmonic Analysis

This progression moves through F♯ (Tonic) → B (Subdominant) → F♯ (Tonic) → C♯ (Dominant).

This compact four-bar pattern shuttles between the three primary blues chords, returning to I in the middle. It works as a simplified blues form and appears as a turnaround in longer blues structures.

Song Examples

Mannish Boy — Muddy Waters
I'm Your Hoochie Coochie Man — Muddy Waters

Chord Details

F♯ B C♯

More Progressions in F♯ Major

I–IV–V–I I–V–vi–IV I–vi–IV–V ii–V–I I–IV–V I–♭VII–IV vi–IV–I–V I–V–vi–iii–IV–I–IV–V I–IV I–V IV–V IV–I