The Carl Fischer Progressive Duets for Strings series is a comprehensive publication of two volumes of graded duets that have been arranged or composed by Larry Clark and Doris Gazda. This collection of duets will be useful in a variety of performance situations and is an excellent way for the student to build ensemble skills with a colleague or teacher. These pieces are published for viola, violin, cello, and bass and are arranged so that it can be performed by any combination of these string instruments, making this collection a valuable tool in the school classroom and with ensemble sessions.