The document discusses instrumentation and timbre in two musical works: West Side Story and Symphony No. 5 by Beethoven. It provides details on:
1) The large orchestra required for West Side Story, including doubling of woodwind instruments and use of various brass mutes, to portray the variety of musical styles in the characters and setting.
2) Soft timbres used in "Something's Coming" from West Side Story so as not to overpower the solo vocalist, including clarinets, strings, and muted trumpets.
3) The standard classical instrumentation used in the first movement of Beethoven's 5th Symphony, with strings as the dominant force and woodw