C# Classic Rock Loop
I – ♭VII – IV progression in C# major
C# Classic Rock Loop — I – ♭VII – IV
The C# Classic Rock Loop (C# – B – F#) borrows the ♭VII chord from the parallel Mixolydian mode, giving it a rebellious, anthemic edge. This three-chord riff has powered rock music since the 1960s. With seventh chords (C#Maj7 – B7 – F#Maj7), it takes on a bluesier, more soulful character.