Soldier's given name is David Sulzer (under which name he is a professor and lab master at Columbia University's Laboratory of Dopamine Neurotransmission in New York City). Soldier's music is largely conceptual: for one recent work -- A Thai Elephant Orchestra -- he trained a group of elephants to improvise on a variety of instruments, another features a group of Brooklyn schoolchildren performing free improvisation. Not all of his work is so totally off-the-wall, however; as violinist and leader of the Soldier String Quartet, Soldier has written and/or performed traditionally...