I'm currently toiling away on a little treatise (i.e. my master's
thesis) in which I prove that post-1997 Radiohead exclusively
constitutes the Best class of art in the history of human aesthetic
activity. (Black humor -- you gotta find your yuks where you can under
such conditions.) This exploration of personal and cultural memory
includes consideration of a collection of stylistic cliches known as "<a href="http://www.youtube.com/watch?v=1WQUIBRnqFE&annotation_id=annotation_869601&feature=iv" target="_blank">blues turnarounds</a>,"
wherein the tonic is embellished via interior chromatic descent in
preparation for the hypermetric downbeat. From this figure we may
abstract the scale-degree line 5 - #4 - 4 - 3, as well as b7 - 6 - b6 -
5. As initially noted, the former is embedded in the progression I - II
- V (- I ...). (For the objectively finest example of all time, check
out Radiohead's "You and Whose Army," *Amnesiac*, 2001.) <br>
<br>A variant of the latter might be observed in Dmitri's example,
"Lithium." As Dmitri points out, the initial chords (I - iii - vi - IV)
are hardly particular to rock music, though it seems worth noting their
close association with I - V - vi - IV, <a href="http://www.youtube.com/watch?v=qHBVnMf2t7w" target="_blank">an extremely common progression</a>
in the repertoire -- with no authentic dominant. As for the bluesy
graft bVI - bVII - V - bVII, could not the entire progression be
understood as the harmonic realization of an undergirding scale-degree
descent spanning <b>1</b> - 7 - 6 - b6 - <b>5</b>? (Uncle Heinrich would be so proud of me. Actually, I expect he'd be deeply, deeply disturbed.) <br>
<br> More generally, one might regard certain blues conventions as
memetic sites within which descending minimal voice leading among
contiguous chords is stylistically normalized. The continuity of such
descents is framed by the constituency of some tonally prior sonority,
e.g. a tonic I7. Of course, this conception serves as but one means of
rationalizing a cultural transmission. <br>
<br>Finally (pardon my prolixity -- I'm busy procrastinating), in
response to Walt Everett's query, it seems to me that the initial texture of "Yesterday"
manifests 1) a fairly common left-hand realization of G major
(represented with fret numbers, ordered from strings 6 to 1)
[3,2,0,0,3,3] in conjunction with 2) a common right-hand fingerstyle pattern in which
the thumb strikes a metrically strong bass note, while the index,
middle, and ring fingers strike the highest three strings on metrically weak beats. Since the
chordal third is not among these strings (i.e. 6, 3, 2, and 1), it
would thus be omitted.<br>
<br>Love,<br>-- <br>Patrick Fitzgibbon<br>Graduate Student in Music Theory<br>University of Iowa<br>