She used her status as the top female American composer to further the careers of young musicians. While she had agreed not to give private music lessons while married, Beach was able to work as a music educator during the early 20th century. She served as President of the Board of Councillors of the New England Conservatory of Music. She worked to coach and give feedback to various young composers, musicians, and students. Given her status and advocacy for music education, she was in high demand as a speaker and performer for various educational institutions and clubs, such as the University of New Hampshire, where she received an honorary master's degree in 1928. She also worked to create "Beach Clubs," which helped teach and educate children in music. She served as leader of some organizations focused on music education and women, including the Society of American Women Composers as its first president.