PTC Music
Record Label, Promoter, and Publisher 

 Founded by Christopher Barrett in 2015, The PTC Record Label is based in London and represents Phaze Theory, The Holotropics, Christopher Barrett's solo projects, and regularly collaborates with Pentagon Brass; producing a number of different recordings, videos, and events around London and the UK.

PTC Music also draws on the experience of several consultants based in the UK and California to commission new visual art, music, and publications for brass.