It was then that Bishop Peter Moran appointed Dr Roger Williams to the post of Director of Music and the choir continued to improve and expand its repertoire under his direction until he resigned in October 2015.  

The Aberdeen Diocesan Choir serves the Roman Catholic Diocese of Aberdeen by enhancing a number of its liturgies.  The Choir was founded by David Meiklejohn who directed the choir until taking up a lecturing post at Maryvale Institute in Birmingham in September 2009.