Home›Browse›T›twelve-bar bluestwelve-bar bluesOur editors are putting together more complete content — check back in about 20 minutestwelve-bar bluestwelve-bar blues — nounnoun1. a common musical chord progression used in blues and rock music, consisting of 11.nounDefinitiona common musical chord progression used in blues and rock music, consisting of 12 measures.ExampleHe learned to play a twelve-bar blues on his guitar.