Sylvie Courvoisier and Mary Halvorson are contemporary improvisers who approach abstraction from two different angles: Courvoisier as a pianist at the bridge between free jazz and European classical music, and Halvorson as a deconstructive guitar improviser, strongly affiliated with (for lack of a better term) the Brooklyn jazz scene. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.