SNMAS is the umbrella organization for three performing groups: the Musical Arts Chorus, a large community chorus; the Musical Arts Singers, a vocal chamber ensemble of semi-professional singers; and the Musical Arts Orchestra, comprised of professional instrumentalists.

The Society's annual season typically includes the performance of choral-orchestra masterworks by the Musical Arts Chorus, Orchestra, and guest soloists; chamber concerts by the Musical Arts Singers; and a "pops" concert by the Musical Arts Chorus, featuring the music of Broadway composers. The Society's classical programming ranges from J.S. Bach's monumental Mass in B Minor to David Fanshawe's exciting twentieth century masterpiece, African Sanctus.