You'll love the WSS - it's like seeing a master chef's recipe book. The way the string are used is so different than in a symphonic score, and to see the woodwind doublings laid out like that is great. You should remember that Bernstein's reed parts were a little odd, since he had a symphonic bassoon player that he loved who didn't double. So essentially he had 4 doublers and a bassoon, which he uses a lot more than most theatre orchestrators.
There are also three "modern" orchestration books that are definitely worth looking at because a lot of the principles carry over into theatre orchestrating: Don Sebesky's "The Contemporary Arranger", Henry Mancini's "Sounds and Scores", and Nelson Riddle's "Arranged By Nelson Riddle". Sebesky in particular is great, and he's done a ton of Broadway.
And of course, Rimsky-Korsakov's book is the Bible of symphonic orchestration so if you've not read/studied his book and you're serious about arranging/orchestrating, you really should.
Updated On: 4/25/12 at 09:57 PM