By BEN RATLIFF
Published: July 18, 2004
On "Wassermonde" (Elephant; www.free-elephant.de), this German violinist builds improvisations out of the smallest root materials — an interval, an arpeggio, the bounce of the bow on the strings, the slow pulsation of a chord. But this isn't research: she makes deep music out of it, true go-for-broke art. The precedent here is the late bassist Peter Kowald; Ms. Gottschalk comes from Wuppertal, Kowald's home base, and she reflects some of his intense concentration in the making of music that isn't classical, isn't jazz, isn't anything, really, except an investigation of an acoustic instrument's inherent power.