Today on the local classical music station I was privileged to hear Aaron Copland's wonderful ballet, Appalachian Spring. I've heard the work many times before, as it is a favorite of mine. (My favorite recording of it is Leonard Bernstein conducting the Los Angeles Philharmonic.) What was different today was that the radio station played the original version that Copland wrote for chamber orchestra, as opposed to the version for full symphony orchestra with which I am very familiar. Hearing the work in this new light -- with sections of the work executed in the more intimate tonal qualities of a chamber ensemble -- was very illuminating.