Langdonboom has 2 Silver Apples concerts.

Silver Apples was an electronic/psychedelic duo which formed in 1967 in New York City, New York, United States. They originally consisted of Simeon Coxe III (who played a custom home-made synthesizer known as the "Simeon") and Danny Taylor (drums). The duo split in 1970. The group was reformed in 1996 by Simeon and new drummer Xian Hawkins. Danny Taylor returned to the band in 1998 and the band toured as a trio until 1999 when Simeon was injured in a car accident. The band returned to making music in 2006, but without Taylor, who died in 2005.