Poore studied at Wells Cathedral School in Somerset from 1974 to 1984. While there he was a choral scholar in Wells Cathedral Choir and also studied drums and piano, playing percussion in the school orchestra for the duration of his time at Wells. He then went on to study jazz, played drums in various bands, and also became a drum teacher. He then attended Newport Film School in Wales in 1987.
Following several years working as a sound designer and dubbing mixer for Bristol-based TV post production company Films At 59, Poore began his composing career in 1990 with work for the BBC Natural History Unit, and was soon providing music for two of the network's main natural history series, Wildlife on One and BBC Natural World, whilst also providing music for news and current affairs documentaries for the BBC's Nature department.
He went on to provide the score for both David Attenborough's Life in Cold Blood, winner of the BAFTA Award for Best Factual Series in 2009, and Life in the Undergrowth with fellow Bristol composer Ben Salisbury, with whom he also co-wrote The Nature of Britain series presented by Alan Titchmarsh. He wrote music for Planet Earth's accompanying conservation films Planet Earth - The Future. Poore's TV scores also include the long-running BBC series Big Cat Diary and a sequence of BBC nature documentaries, Orangutan Diary, Elephant Diary, and Chimpanzee Diary with Charlotte Uhlenbroek.
Poore's work on the BBC's Springwatch series earned a Royal Television Society (RTS) nomination in 2007 for the title theme (see Awards and Nominations).
His music is also featured in Channel 4's Grand Designs since 2007, and Dispatches.
Poore has also written several series for children including for Disney Mr Moon, a CGI space adventure series which has aired worldwide on the Playhouse Disney Channel since May 2010, and Henry's Amazing Animals, and for the BBC Growing Up Wild.
Poore composed incidental music used in the feature film Ocean Voyager, narrated by Meryl Streep, which was subsequently performed in London by the Royal Philharmonic Orchestra.Score for the acclaimed ITV series In The Wild including films with Goldie Hawn, Bob Hoskins and Christopher Reeve
BBC's The One Show
ITV's Celebrity Fit Club
BBC One's Omnibus
Degas and the Dance (for PBS)
National Geographic series Africa,
The Secret Life of Elephants
Tales from the Green Valley
He has also written for Bristol-based Aardman Animations. Poore has recorded with orchestras and musicians from The London Philharmonic Orchestra, The BBC Concert Orchestra, and The Bristol Ensemble, to a selection of extremely accomplished solo artists which have included Kit Morgan (guitar), Stuart Gordon (violin), Dirk Campbell (Ethnic Wind Instruments), Dan Newell (trumpet), Andy Sheppard and Will Gregory (Saxophone), Adrian Utley (guitar), Paul Clarvis (Percussion), Belinda Sykes and Abbie Lathe (vocals), recording at Abbey Road Studios and Air Edel Studios in London, and at Christchurch Studios in Bristol.
Poore played drums for the live concert of the music for the BBC series Nature's Great Events performed by the BBC Concert Orchestra at Bristol's Colston Hall in September 2009, and narrated live by Sir David Attenborough. The music was composed by Ben Salisbury and Barnaby Taylor and conducted by William Goodchild.
Poorecan also be heard on the critically acclaimed 2008 Portishead album Third, singing additional vocals on the track "Deep Water" with Ben Salisbury (collectively credited as "The Somerfield Workers Choir"), and Team Brick .
In 2005 Poore's work on the film Ireland for the BBC's Natural World and PBS Nature  earned him an Emmy Nomination for Outstanding Individual Achievement in a Craft.
He received a nomination for the Royal Television Society (RTS) Awards in 2007 for the BBC Springwatch for Outstanding Original Main Title Theme Music.
Further recognition followed at the 2008 Wildscreen Festival, where the episode 'Armoured Giants' from the BBC series Life in Cold Blood, including Poore's compositions for the soundtrack, was awarded the prestigious Golden Panda Award.
The TV series Life in Cold Blood and Life in the Undergrowth, featuring Poore's compositions, both received BAFTA recognition in 2005 and 2009.