orchestration books

Hey guys, I read two orchestration books this summer. The first one was Scoring for the Band, by Phillip Lang. like most orchestration books, it covered the basics of all of the instruments that exist in the band and their ranges. This book gave great examples of how to use every instrument, supplemented with score excerpts to reinforce the concepts being discussed. Also discussed in the other sections were how to create orchestrations for the Marching bands and works that featured soloists. I found this book to be somewhat useful in how it approached creating arrangements. It was slightly cheesey because it use yankee doodle dandy for each excerpt (boo) but it it was nice to see how they changed each section according to the choice of instrumentation. Some of the key concepts of the book were to: use key signatures that worked well for the instrument and the ensemble as a whole, know and understand the ranges of each instrument and how timbre changes in each register, explore as many different color combination as possible and if it works-use it. I mainly read the book because I was looking for a section that would explain how to use the overtone series when scoring for the concert band. unfortunately, after 200 pages of reading, I only found one sentence on using the overtone series. The basic ideas are to use larger intervals in the voicing of the lower registers and closers intervals in the highest registers. This approach mimic the division of the natural overtone series and helps to keep the orchestration from becoming muddy. This concept can also be applied to part writing for the various families of instruments themselves.
The other book I read was Belioz treatise on instrumentation, annotated by Richard Strauss. It is a great read; even thought it is dated. There is a great section, during his explanation of the violin family, where he writes about each key, either major of minor and how he thinks they sound. He went through all 12 major and minor keys describing if they sounded bright or dark and what type of emotions they could evoke. I recommend that any composition major reads this work.