Film & TV composer | Northern Ireland


My name is Deci. It's short for Declan. I'm based in Belfast, NI. I specialise in writing and producing Indie/Alternative synth-based orchestral music for use in Film, Television and Advertising.  Previous credits include advertising campaigns for BT, Harp Lager, Dale Farm, Cinemagic and NI Screen. My music has also featured on television shows such as Hollyoaks and Catfish, as well season trailers for Grey's Anatomy and the Mentalist, and has been used by BBC, Sky, MTV, Channel 4, Channel 5 and LFCtv... ITV obviously don't have any taste...  I've also produced and continue to produce bespoke music for independent documentary film makers, app developers and podcasters.  My recent film credits include the Guard (2017), The boring diary of Frances Noone (2016) and Dinosaurs (2016).

My preferred music style fuses elements of indie/alternative and ambient music, with more traditional orchestral and piano arrangements. My film tastes are wide ranging, but I have a particular love of Independent cinema and sci-fi. 

Film composer Northern Ireland Deci Gallen

Stills Photographer

I have over ten years experience as a photographer and have shot pre-production and promotional stills for movie and documentary projects.  Check out some of my work here


I have written a number of spec screenplays, both short film and features. If you'd like to read my screenplays or loglines, simply get in touch via the contact form. They're totally worthy of your time... I promise.