Sarah Watts - Multiphonic Miniatures for Bass Clarinet. First published in 2015 by Metropolis Music Publishers, Spectral Immersions; A Comprehensive Guide to the Theory and Practice of Bass Clarinet Multiphonics is the culmination of the doctoral studies of Sarah Watts. By pondering the following: "How do we teach, and how do we learn to produce and play multiphonics? Many students and players simply wait for multiphonics to appear in a piece of music, and then struggle to play them with control and success," she has created this collection of twenty-four miniatures, each with a limited number of multiphonics. The notation throughout is free form, or graphic score based, truly a unique volume of music!