Before any of the musical gadgetry could be used on night three of the Ecstatic Music Festival at Merkin concert hall, the audience rang the evening’s first notes by singing “Happy Birthday” to So Percussion member Jason Treuting, joyfully absent due to the birth of his child earlier in the day. In jeans and t-shirts, the present members (plus Jason’s skillful stand-in) then gathered around a large bass drum stage right and began the evening with a wonderful introduction to their music: chimes mixed with frenetic drumming rhythms I dare not describe. The young men were then joined onstage by