IIVVI

Classical / Pop / Rock · A# / B♭

I-IV-V-I in A#

The most fundamental progression in Western music. Tonic to subdominant to dominant and back — the engine behind thousands of songs.

Chords in A# I-IV-V-I

IBb
IVEb
VF
IBb

Hear I-IV-V-I in A#

I-IV-V-I in All 12 Keys

CC – F – G – CC#D♭Db – Gb – Ab – DbDD – G – A – DD#E♭Eb – Ab – Bb – EbEE – A – B – EFF – Bb – C – FF#G♭F# – B – C# – F#GG – C – D – GG#A♭Ab – Db – Eb – AbAA – D – E – AA#B♭Bb – Eb – F – BbBB – E – F# – B

Other Progressions in A#

I-V-vi-IVBb – F – Gm – Ebii-V-ICm – F – BbI-vi-IV-VBb – Gm – Eb – F12-Bar BluesBb – Eb – Bb – F – Eb – Bb – FIV-I-V-viEb – Bb – F – GmI-III-IV-VBb – D – Eb – F

Related Progressions

12-Bar Blues in A#Bb – Eb – Bb – F – Eb – Bb – FI-V-vi-IV in A#Bb – F – Gm – EbI-vi-IV-V in A#Bb – Gm – Eb – FIV-I-V-vi in A#Eb – Bb – F – Gm

I-IV-V-I in A# / B♭

The I-IV-V-I progression in the key of A# uses the chords Bb, Eb, F, Bb. These correspond to the I, IV, V, I degrees of the A# major scale.

The most fundamental progression in Western music. Tonic to subdominant to dominant and back — the engine behind thousands of songs. In A#, this progression has a characteristic sound shaped by the tonal colour of the A# root — also written as B♭ — common in classical / pop / rock. Practise hearing it until the sequence feels inevitable rather than surprising.