All progressions

I IV V in B: B, E, F#

Their roots are the first, fourth and fifth notes of the B major scale. B, E and F# are major chords.

1. B

   I

   B D# F#

   Open in Keyriff

2. E

   IV

   E G# B

   Open in Keyriff

3. F#

   V

   F# A# C#

   Open in Keyriff

I IV V in other keys

• C
• Db
• D
• Eb
• E
• F
• F#
• G
• Ab
• A
• Bb