Rewned for his talents as organist and composer, Charles-Marie Widor was also a professor at the Paris Conservatoire. During his tenure there, he wrote this study of instrumentation, which he viewed as a supplement to Berlioz's celebrated but dated treatise on the same subject. Full of insights and details t found in other manuals of instrumentation, Widor's 1904 text presents a comprehensive catalogue of the various abilities and qualities of all the orchestral instruments. An abundance of practical advice regarding instrumental combinations and relevant works to study. This classic work is an invaluable reference for any student of orchestration.