DR OPTIMISER DR OPTIMISER IS A COMPOSER AND PRODUCER LIVING IN BRISTOL, UK. In 2002 the former drummer from Kosheen installed a PC with music software in a Derby student dwelling. This altered the direction and type of music that Neil Garrett (aka Dr Optimiser) had been making up till that point. Neil Garrett was part of several bands since 1998. He played bass in a studio 3 piece called 'Foetus Drummer' with drummer Ian Streeter and the late Toby Horrobin on lead guitar.