Like a talented gallerist, filmmaker Jonathan Parker (Bartleby) curates a collection of fictional artists, composers, and assorted New York scenesters in (Untitled), his very funny, tolerant satire of contemporary art and its discontents. Adam Goldberg glowers effectively as a serious composer of maddeningly difficult music; the wonderful Marley Shelton glows with hilariously cool composure as a gallery owner who exhibits unendurable art pieces. Indeed, the whole cast is museum quality, and the ”music” performances are pitch-?perfect in their dissonance. A-