the lists:
????-1949
1950-1959
1960-1969
1970-1979
1980-1989
1990-1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010-????
the list
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Acclaimed Music Top Albums, Top Songs
Playlist Research Top Pop Hits, Top Albums
Tunecaster Top 100 Songs
Wikipedia 2009 in Music
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ten albums
Animal Collective - Merriweather Post Pavilion
Bill Callahan - Sometimes I Wish We Were an Eagle
Vic Chesnutt - At the Cut
Circulatory System - Signal Morning
Dinosaur Jr. - Farm
Dirty Projectors - Bitte Orca
Magick Markers - Balf Quarry
Oneida - Rated O
Sonic Youth - The Eternal
Sunn - Monoliths and Dimensions
four singles and deep cuts
Miley Cyrus - 'Party in the U.S.A.', The Time of Our Loves [E. P.]
Jeremih - 'Birthday Sex', Jeremih
Kesha - 'Tik Tok', Animal [2010]
Phoenix - '1901', Wolfgang Amadeus Phoenix
eight archival and compilation albums
Hank Ballard and the Midnighters - Nothing but Good 1952-1962
The Beatles: The Original Studio Recordings
The Beatles in Mono
Eddie Cochran - Somethin' Else: The Ultimate Collection
Death - ...For the Whole World to See
Little Walter - The Complete Chess Masters (1950-1967)
Sonny Boy Williamson[ I] - The Original Sonny Boy Williamson: The Later Years 1939-1947
Neil Young - Archives Vol. I (1963-1972)