Books like Anatomy of the Orchestra
Norman Del Mar
Anatomy of the Orchestra is 528 pages, about 9 hours 41 minutes at 250 words a minute.
7 books to read next
How long each takes
The Elements of Orchestral Arrangement 3.0 h 
What Every Pianist Needs to Know About the Body 2.9 h 
With Your Own Two Hands 5.4 h 
Effortless Mastery 3.5 h 
The Inner Game of Music 4.6 h 
Wahrung Der Gestalt 5.6 h 
A Performer's Guide to Baroque Music 5.9 h Bar height shows length. Estimated at 250 words a minute.