The I-IV-V Progression
This progression is similar to the Classic I-IV-V Progression except that the "I" chord is tagged on to the end in order to complete a musical thought or phrase.
Examples of the I-IV-V-I progression are Words of Love
verse (1957), Summertime Blues
verse (1958), Little Bit O'Soul
verse (1967), Lay Down Sally
chorus (1978), Old Time Rock and Roll
(1979), and Give Me One Reason
Below are several well-known songs created by applying chord substitutions to the I-IV-V-I Variation Progression.
E-A6-A-B7-E = Good Time Charlie's Got THe Blues
E-A7-B7-E = That's All Right, Mama
verse (1954) and Heartbreak Hotel
E-E7-A-B7-E = Your Cheatin' Heart
verse (1952) and If You Wanna Be Happy
Em7-Am9-B7-Em7 = Elenore
The following chart shows a comparison of these progressions:
E- A7- B7-E
Em7- Am9- B7-Em7
The Turtles' verse to Elenore
takes the I-IV-V-I Variation and substitutes a "i7" chord for the "I" chord and a "iv9" chord for the "IV" chord, creating the chord progression below. [ Note the effective use of the "bVI-V7" one bar Turnaround. ] The substitution of a Minor for a Major chord is a great way to add interest to a well-worn progression. This approach was used to write the verse to the 1959 Sleep Walk
where the "IV" chord of the Rock Ballad Progression was substituted by the "iv" chord.