George Chadwick, the new director of the conservatory, suggested that the group adopt the name of a student organization he had been a member of in Leipzig, Germany. Sinfonia was born, and Chadwick became the second honorary member.
The men of the school were very interested in forming a music club for men. They would have their first meeting on October 6, 1898. Frank Leslie Stone became the first president. Under him the fraternity gave concerts and sponsored a Glee Club.
Phi Mu Alpha is still constantly growing. With fifty members in 1899, Phi Mu Alpha now has 229 active chapters totaling over 5,000 members. Over 150,000 members have been initaited into Sinfonia since 1898. The main purpose of the fraternity is to further the advancement of American music in America.