Revolutionary American composer Alvin Lucier will get a very special 90th birthday present that will be performed by 90 artists and is about to last for 26 hours. Artists will stage their performances of Lucier’s paradigmatic 1969 work 'I Am Sitting In a Room', an experimental work Lucier made to explore his own voice, consisting of echo and dissonance of his reading voice. Beginning on his birthday eve, Thursday, May 13th, 8pm EST (2am, Friday, May 14th Berlin time, 9am, Friday, May 14th Tokyo time) and continuing throughout all of Friday, May 14th, Lucier's birthday. The marathon on Thursday and Friday will feature members of his family, students and colleagues performing in various spaces, some of which have been part of the composer’s life. New York Times looks back into the artist's career.