Employing analog synthesizers that emulate various sounds and their placement design, etc. in the New York City subway system, a sound environment is created for improvising musicians who use that electronic sound as an "aural score…I am…privileged to ride the same train with them" (Hamilton). The excellent musicians for this ride are Thomas Buckner, baritone vocal, Roscoe Mitchell, alto sax, Ralph Samuelson, shakuhachi, Peter Zummo, trombone, and Jonathan Haas, percussion. Often delicate and mysterious, at times gently humorous and just plain odd, the sounds unfold inner, emotional experience among the subterranean. Fascinating and original.