Perched on the economy's shifting shoals, arts groups are bracing for a rough fall season. How does money play out in the concert hall?
By playing it safe.
Some groups, such as the Chamber Orchestra of Philadelphia, have cut the number of concerts. There's a little less risk-taking in programs stocked safely with Brahms (Astral Artists) or Schubert and Beethoven (Philadelphia Chamber Music Society).
To be sure, Oct. 17 presents a remarkable new-music convergence: Cellist Matt Haimovitz interacts with various electronic elements in a program of Steven Stucky and Christopher Rouse at the Kimmel Center, while at two nearby churches the Mendelssohn Club reprises David Lang's still-fresh Battle Hymns and composer Michael Hersch unveils a new, evening-length work, Last Autumn.



