Based out of Philadelphia, guitarist and composer Rick Henderson creates music for dance companies and has taken part in a series of band projects including Emma, Eltro, City of Horns, Ashtabula, Wipeout Gang, Chowderheads, and the Wayward Wind. He sometimes makes use of the pseudonym Elmer Clayton, probably a good idea considering the number of other performers with his name or a variation on it. The list of artists with recording credits that he should not be confused with features both the obscure and renowned, the latter category including a sideman for Duke Ellington. Rather than jazz, a genre phenomenon described by some writers as "Philadelphia psych-pop space rock" is one area where the Philly Henderson fits in, while other aspects of his work are downright avant-garde, making use of ideas from conceptual art.
The Emma band is a psychedelic trio featuring the guitarist backed by bassist Dean McNulty of Chopper plus drummer Ed Farnsworth. Packaging innovations have been part of this group's discography, as well as an important aspect of Henderson's work in general. The first Emma collection came in a bag of glitter. A subsequent single release was pressed in an edition of 666 -- a move predating the historical revelation that 616 may have been the satanic number after all -- which were then wrapped in classified ads and mailed to random businesses. Henderson composed many of the songs featured by this band, among them "Devil in the Marketplace." His collaborators among the dance and choreography crowd include Bethany Formica, Mark O'Maley, and Rebecca Sloan.