In the modern euphonium repertoire, a rapidly expanding medium of accompaniment is the use of electronics, and especially live electronics. While the use of electronics can be daunting to new performers, this document aims to build on the established research surrounding electroacoustic solo euphonium works. The first part of the document will familiarize readers with some history and terminology surrounding electroacoustic music and the foundational research for this project. The second part is a performance guide to two commissioned live electroacoustic works: Bitruncation by Lucy Pankhurst, and Shape Shifter by Andrew May. The performance guides include theoretical analyses, an ideal hardware/software set up, and performative suggestions. An updated repertoire list is included in an appendix for performers who wish to discover more electroacoustic music. This list contains publishing or contact information in hopes that performers can more easily access these works.