purpose of furthering its Object. The fraternity's collegiate chapters participate in a broad range of activities emphasizing brotherhood, service, and music. In addition to purely social activities for the benefit of their members, chapters typically conduct activities such as: taking music into the community through the Mills Music Mission. sponsoring concerts of American music. sponsoring jazz and choral festivals. sponsoring all-campus sings and Broadway-style reviews. organizing members into performing ensembles ranging from big bands to barbershop quartets. commissioning new musical works. bringing prominent music performers and clinicians to their campuses. At a minimum, chapters are required to annually sponsor at least one program devoted exclusively to the music of American composers and to celebrate Founder's Day (October 6) and Chapter Day (the chartering date of the chapter). Chapters are also encouraged to meet the requirements of the fraternity's Chapter Citations program, which recognizes chapters annually for achievement in the areas of Chapter Operations, Membership Development, Alumni Relations, Musical Achievement, Province Interaction, Special Projects, and Fraternal Tradition. Alumni associations Membership in Phi Mu Alpha is for life. While the core values of the fraternity are taught during probationary and collegiate membership, Sinfonians are expected to live out those values throughout their lives in support of the fraternity's Object. In order to organize its alumni for that purpose, Phi Mu Alpha charters alumni associations. There are currently 19 active alumni associations scattered throughout the United States. As stated in the fraternity's National Constitution, Alumni associations may elect to membership any alumni or honorary member of the fraternity in good standing. Membership in an alumni association is voluntary and is not required for an alumnus to remain a member of the fraternity in good standing. Alumni associations cannot initiate men into the fraternity. The structure and activities of the alumni associations are left almost entirely to their members. Unlike collegiate chapters which must adhere to the fraternity's General Regulations for Collegiate Chapters, alumni associations are free to choose their own governance structures, including what officers they have, how often they hold meetings, etc. Regional organization From 1922 to 1948, chapters of Phi Mu Alpha were grouped into regional units called districts that were assigned geographically descriptive names such as "Southern District" and "Northeastern District." Starting in 1949, the districts were replaced by provinces, each of which was given a numerical designation. Since that time, new provinces have been formed by the merging and