The following is a list of some chord progressions in pop songs using parallel minor.
Sweet HomeAlabama—Lynyrd Skynyrd D—C—G. etc
The C major chord is out of key. Since the diatonic chord in D is c# diminished, the C major is referred to a “bVII”, since C is the flatted seventh of D (C# is the seventh), and it is a major chord. C major is also the V chord in the key of F major, which is the relative major of d minor, the parallel minor of D major. Thus it is a diatonic chord in parallel minor. The bVII is probably the most popular of all out of key chords.
SuffragetteCity—David Bowie A—F—G etc
The F major is out of key, a bVI. Very common in rock music.
Purple Haze—Jimi Hendrix E—G—A
The G is out of key, a major III. Also common in rock.
As Tears Go By—The Rolling Stones G—A—C—D
The A is out of key, a major II. Very popular. Also is the V of V, also called a secondary dominant. See “secondary dominants” for more on this.
Cinnamon Girl– Neil Young D am C G D (verse)
The am is out of key, a minor V. Not unusual!
No Surprises—Radiohead F—Bbm etc
A minor iv, in this case Bbm, is often used.
Light My Fire—The Doors
Abm—Fm etc
The Abm is out of key, a minor i. A bit unusual in a major key, but does happen.Much more unusual is the the 2 chords together, a i-vi progression.
Many examples exist in each of the parallel minor chords. Often, there is an out of key progression of two or more chords that lead back to a diatonic progression, most commonly through what are known as secondary dominants. Again, this is by no means a complete list of possibilities, but examples of the most common out of key chords in a progression.
©2012 Jim Greenfield