BBC National Orchestra of Wales
From Tardis Wiki, the free Doctor Who reference
BBC National Orchestra of Wales — often abbreviated as BBC NOW, and known in Welsh as Cerddorfa Genedlaethol Gymreig y BBC — has been the orchestra used by composer Murray Gold and orchestrator Ben Foster since series 2 to record the incidental and theme music forDoctor Who. Technically, their full name is the BBC National Orchestra and Chorus of Wales. Gold has used both the choral and orchestral aspects of the group to score Doctor Who.