I6–IV–V in F♯ Major

Pattern: I6 – IV – V Chords: F♯6 – B – C♯

Chord Breakdown

Numeral	Chord	Type	Function
I6	F♯6 (details)	major sixth	Tonic
IV	B (details)	major	Subdominant
V	C♯ (details)	major	Dominant

Harmonic Analysis

This progression moves through F♯6 (Tonic) → B (Subdominant) → C♯ (Dominant).

The I6–IV–V progression substitutes the plain major tonic with a major sixth chord, adding warmth and a touch of jazz sophistication to the classic tonic-subdominant-dominant movement. The sixth chord was the standard way to voice the tonic in the swing era, and this progression captures the easygoing, confident sound of classic American popular music.

Song Examples

My Way — Frank Sinatra
Take Five — Dave Brubeck
Mr. Sandman — The Chordettes

Chord Details

F♯6 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

Related Progressions

I–IV–V I6–ii–V I–IV–V–I