SOCIETY OF COMPOSERS SERIES-ASUC JOURNAL OF MUSIC SCORES

This looks like a great organization that’s been around for a while. They offer a lot of resources that may also help you.
The Society of Composers, Inc. (SCI) is an independent organization concerned with the fellowship, collaboration, career goals, and objectives of new and contemporary music composers and those interested in topics related to composition.
The Society of Composers, Inc. is a professional society dedicated to the promotion of composition, performance, understanding and dissemination of new and contemporary music. Members include composers and performers both in and outside of academia interested in addressing concerns for national and regional support of compositional activities. The organizational body of the Society is comprised of a National Council, co-chairs who represent regional activities, and the Executive Committee.
ASUC/SCI Record Series – A Piece of History
The ASUC/SCI Record Series is now available online. These recordings, recently restored from best-available copies, represent an important historical document in the history of SCI. Visit the archival site to listen!
The SCI Journal of Music Scores
The Journal of Music Scores is an anthology of music by members of the Society and is published by European American Music. It is sold mostly to music libraries throughout the United States by subscription. There have been 37 volumes of the SCI Journal of Music Scores.
The Leonard Library has Volumes 1-18 in this score series.
Composerver
Composerver is a streaming-audio/video archive of works by SCI-member composers.