Simon Dearsley is a teacher, an established concert organist, conductor, composer and acclaimed accompanist. In 1997 he relocated to the United States, to take up the position of Director of Music Ministries at the Congregational Church, New Canaan & a Faculty Member of the Juilliard School of Music, teaching composition and theory. Initially the church post was part-time with a directive to expand the musical life of the church. His new initiatives include a music pastoral outreach program, “I Can’t Sing Choir”, a Boys Choir, a Girls Choir, music for toddlers, Opera & Music Theatre productions and weekly concerts of music from sacred to jazz.

Simon is a concert organist, performing tours in the USA, UK, Japan and Australia. He performs with his wife programs for organ & soprano or on the lighter side popular & operatic reviews. Simon performs as an organist & harpsichordist with the New England Bach Soloists, a professional ensemble based and performing in Connecticut and New York. He is also the director of a professional group of singers dedicated to making Opera accessible and fun called "Divas in the Drawing Room".

As a conductor Simon has worked with many chamber choirs, choruses, orchestras in all areas of musical style. In London, he conducted the St. Bartholomew’s Hospital Choir (2,000 members), the Europa Singers (30 member chamber choir), The Bourne Singers, and was the founding Director of the Gordonstoun Festival Chorus. With these choirs he conducted music ranging from Gesualdo to Cole Porter and Brahms through to Bernstein. He is recognized, unusually, as being equally at home with either an orchestra or a chorus. In 2002 he completed 9 years as the conductor of the Dartington Summer School Orchestra.

Since 2001 the Elisabeth University, Hiroshima, Japan has on three occasions invited Simon as the Professor of Organ and Theory to work with undergraduates and postgraduate students. In August Simon returns to Dartington to run a Church Music Course for Choral Conductors, Organists and Singers.

In 2005, Simon accepted the role of Musical Director of the Beaumaris Singers and is taking the choir from strength to strength with a varied and interesting repertoire.