These fields are in music careers.
Mobile Disc Jockeys - select and play recorded music for an audience.
Musicians - play a musical instrument. Popular instruments are guitar, piano, cello, violin, and organ.
Music Therapists - use music to improve general well-being of others. People with stress, pain, communication difficulties, emotional trauma, and memory loss are some of the people music therapy is used for.
Singers - sing professionally.
Songwriters - write songs. They may write either or both the lyrics or music to a song.