American Choral Directors Association - http://acdaonline.org/

Founded in 1959, the American Choral Directors Association (ACDA) is a nonprofit music-education organization whose central purpose is to promote excellence in choral music through performance, composition, publication, research, and teaching. In addition, ACDA strives through arts advocacy to elevate choral music's position in American society.

American Guild of Organists – http://www.agohq.org/home.html

The purpose of the American Guild of Organists is to promote the organ in its historic and evolving roles, to encourage excellence in the performance of organ and choral music, and to provide a forum for mutual support, inspiration, education, and certification of Guild members.

American Musicological Society – http://www.ams-net.org

The American Musicological Society was founded in 1934 as a non-profit organization to advance research in the various fields of music as a branch of learning and scholarship.  At present, 3,600 individual members and 1,200 institutional subscribers from forty nations participate in the Society.  The Society publishes the Journal of the American Musicological Society.  Founded in 1948, the Journal welcomes topics from all fields of musical inquiry, including historical musicology, critical theory, music analysis, iconography and organology, performance practice, aesthetics and hermeneutics, ethnomusicology, gender and sexuality, popular music and cultural studies. The Journal's breadth of musical intellectual scope, its rigorous referee process, and its diffusion to more than 5,000 subscribers worldwide have helped make it the premier journal in the field. Each issue includes articles, book reviews, and communications.

College Music Society - http://www.music.org/

Mission:  The College Music Society is a consortium of college, conservatory, university, and independent musicians and scholars interested in all disciplines of music. Its mission is to promote music teaching and learning, musical creativity and expression, research and dialogue, and diversity and interdisciplinary interaction.

Music Educators National Convention - http://www.menc.org/

The mission of MENC: The National Association for Music Education is to advance music education by encouraging the study and making of music by all.

Music Library Association - http://www.musiclibraryassoc.org/

The Music Library Association is devoted to music librarianship and to all aspects of music materials in libraries. Founded in 1931, MLA provides a forum for study and action on issues that affect music libraries and their users.

Society for American Music - http://www.american-music.org/

The Society for American Music was founded in honor of and originally named for the first critical scholar and bibliographer of American Mu. T. Sonneck, who was born in Jersey City, New Jersey, on October 6, 1873.