Based on the First Eight Measures of the First Ending
Like several of his other originals - which include "St. Thomas", "Oleo", "Doxy" & "Paul's Pal" - "Airegin" has long ago made it to the list of must-know Jazz standards.
It was first recorded in June of 1954 on the Prestige label as part of the 10-inch EP "Miles Davis with Sonny Rollins". In this post, we'll focus on an eight-bar section of "Airegin" - namely measures 9 thru 17 - which make up the first half of the first ending of the tune.
What I find most interesting and challenging about this particular section is the chromatically descending ii-V-Is starting on the second bar - the challenge being to smoothly connect a single melodic line through them.
The notation graphic below, in the original concert key of Ab, illustrates the first of the six short etudes.
Bar #1 consists of an ascending scalar motif over Bb-7, continuing in bar #2 as a descending arpeggio containing the b5 of Dmin7 (Ab), as well as the b5 of G7alt (Db) which is anticipated before the 3rd beat, and which features a descending B augmented triad on beats #3 and 4, resolving to C Major material in bar #3.
The line continues with a C Maj7 arpeggio on the 3rd beat of bar #3, and connects to the next descending ii-V7 (C#-7 F#7) in bar #4, via the interval of a min 3rd (Bb). But wait..., shouldn't C#-7 the (ii7 in the key of B) have a B natural instead of a Bb? From a purely literal theory rule book interpretation, the answer would be yes - but more practically, the Bb (or A#) is the 3rd of F#7 - the V7 of B.
Focusing back to the second half of bar #4, the #9, b9 and b7 (A, G & E natural) of F#7alt are in play here. Moving from diatonic to altered V7 material, as it does in this measure, is a sure-fire way to create harmonic movement in a melodic line - in this case resolving to B Maj7 in bar #5, with straight diatonic material.
Bar #6 is where things get even more interesting - with an F# Melodic Minor derived b3 Pentatonic altering and coloring the F7. Notice that the ii chord (C-7, listed above the staff in parenthesis) is completely ignored in the melodic line. Because the tritone A - D#(Eb) found in F7 (as well as B7, its tritone substitution) is part of the melodic line, it works seamlessly and resolves smoothly to Bb Maj7 in the final two bars of the section.
As mentioned in previous posts, creating etudes for oneself is a perfect way to slow things down and take a look under the hood at any particular musical puzzle.
B. Stern
* "Come Rain or Come Shine" - An All-Weather Etude *
* An Etude for a Brighter Day - John Coltrane's "Mr. Day" *
* For Your High-Ness: An Etude on "Someday My Prince Will Come" *