Ellsworth began piano studies shortly after his 6th birthday in 1964 and after 12 years received his Certificate of Piano Study and Theory from the John Mason Evans Hasslinger Studio (Hasslinger himself was a graduate of the Peabody Conservatory in Baltimore, MD). Between the ages of 11 and 28 Ellsworth also studied cello, guitar and voice. He also performed in several bands from 1976 on including Tailwind, Sabre and Logos Affinity.
Ellsworth continued his studies in music theory and Contemporary Art and Process with Dr. Stuart Smith, and film video production with legendary experimental filmmaker Stan Van Der Beek at the University of Maryland. He received a B.A.in Film/Video production and continued with graduate studies in Communication Arts. During this period he began scoring short films and local cable programs.
In 1987 a movement from his first Piano Concerto appeared in a video production by Johns Hopkins Hospital and from that time on Ellsworth began devoting much of his time to scoring.
1989 saw the release of the first CD from Affinity Music Library to which Ellsworth contributed a great deal of material and he continued to compose for subsequent releases. He received his C.P.M.S. from Johns Hopkins University in 1991 and in 1994 he and partner Mark Van Natta began scoring for multimedia productions in additon to film and video. Film production with cult actor Conrad Brooks commenced in the mid 1990s and he left Affinity Music Library in 1999 to focus on custom scores and shooting/editing corporate videos.
He recorded the Aethellis album in 2002-2003 and began performing the album tracks live in 2004 with his Aethellis band (which includes Mark Van Natta). Ellsworth continues to work in film and video production; writing, directing and scoring.