There are several organizations whose primary goal is to support and advocate for music education. In some cases these groups offer access to published research or grant money. Others provide PSA videos and papers that argue against cutting school music programs.
Support Music is a joint project of NAMM (National Association of Music Manufacturers) and MENC. Their site offers a huge array of documents and links to other groups that advocate for music education.
Education Through Music is a 501(c)(3) non-profit corporation targeted at inner-city elementary and middle schools that lack the resources to provide a school-wide music program. Their purpose is specifically “to enhance students’ academic performance and general development” by providing music education. Based in New York City, Education Through Music has a program dedicated to city schools.
Music-In-Education National Consortium is a professional organization that “combines its music education reform efforts to a) support the evolution of professionally trained musicians in public schools and b) meet the growing teaching shortages that traditional music education cannot fill.”
Consortium members include Metropolitan Opera Guild, Mannes-New School; Chicago Arts Partnerships in Education and other state and city arts organizations. Their site offers access to articles from their Journal for Learning Through Music and Journal for Music-in-Education that can be freely downloaded and used for reference.
Learning Through Music is a national 501(c)(3) non-profit based in Minnesota, that advocates for music in education.
Early Childhood Music & Movement Association is a new group that brings together people who teach young children in schools as well as in programs like Music Together.