"The Duke Of New York" was composed in 1971, and this version was recorded on the 19th of February 1972, at the Metropolitan Museum of Modern Art, New York.
http://rapidshare.com/files/98793952/alvin_lucier_bird_and_person_dyning.zip.html
"Bird and Person Dyning" was composed and recorded in 1975.
Originally released by Cramps Records in 1975 as CRSLP 6111.
fuente: http://lamaraba.blogspot.com
_