The recording sessions for Rastrumentals took place over seven years, between Sao Paulo and Brixton, but the roots of the project stretch back to the arrival of Digistep's father in 1970s Bristol. Aged 18 he had almost nothing to his name, apart from his treasured vinyl collection. These records are still in the family, and have been invaluable in shaping Dubkasm's unique sound. Rastrumentals combines samba instruments such as the cavaquinho, pandeiro and cuica with the work of some of the UK's greatest reggae musicians.
Long-time collaborator Ras B features prominently on the album, and his deep, lion-like cadence will be familiar to anyone who listened to Bristol pirate radio in the 90s. While the Nyahbinghi elder is deservedly respected for his contributions to music, his commitment to Rasta values goes much further. He is now the guardian of Fairfield House in Bath, former home of the Emperor Haile Selassie.