Bird changes
The Blues for Alice changes, Bird changes, Bird Blues, or New York Blues changes, is a chord progression, often named after Charlie Parker ("Bird"), which is a variation of the twelve-bar blues.The progression uses a series of sequential ii–V or secondary ii–V progressions, and has been used in pieces such as Parker's "Blues for Alice".Toots Thielemans's "Bluesette",[1] Freight Trane written by pianist Tommy Flanagan, and Parker's "Confirmation"[2] also have similar progressions.A simple blues progression, in C, is as follows: A typical blues progression in jazz, in C, is as follows:[3] The Bird Blues progression, in C, is as follows:[4] In roman numeral analysis, this is represented by This can be viewed as a cycle of ii–V progressions leading to the IV chord (F7 in the key of C major), and the tritone substitution of the dominant chords leading by half-step to the V chord (G7 in C).[4]