He subsequently studied at the Conservatorium van Amsterdam, the Royal Academy of Music and the University of Oxford (at Keble College).
He has conducted Southbank Sinfonia in recordings with cellist Raphael Wallfisch and tenor Andrew Kennedy and in 2009 and 2010 conducted the orchestra in a total of 71 performances of a new production of Every Good Boy Deserves Favour (Tom Stoppard/André Previn) at the Royal National Theatre which received rave reviews.
[citation needed] In 2006, Over was appointed Conductor of the Malcolm Sargent Festival Choir and has been associated with the Samling Foundation in its work with young professional singers since its inception in 1996.
In 2015 he was appointed Director of Music at St Clement Danes, the Central Church of the Royal Air Force, Westminster London.
As a pianist, his performances with American violinist Miriam Kramer at the Wigmore Hall London and Lincoln Center, New York – as well as on several recordings – have received high critical acclaim.