1. Title of Paper Synthesizer A Pattern Language for Designing Digital Modular Synthesis Software 2.Author's names Thomas V. Judkins and Christopher D. Gill Primary contact Thomas Judkins 3.Email addresses Thomas Judkins tvj1@cec.wustl.edu Christopher Gill cdgill@cs.wustl.edu 4.Postal address for the primary contact Thomas Judkins Jr 2922 N Keating Chicago, IL 60641 5.Phone number for the primary contact Thomas Judkins Jr phone before May20: (314) 727-7402 after May 20: (773) 283-5776 6.Abstract This paper describes a pattern language for designing software digital synthesizers that use modular synthesis in software to generate and modify sound.