This is what happens when two scientists of the Bristol bass continuum collaborate… A. Keyhole – Addison Groove & Die Have you ever stayed awake for 3 days straight? This track runs in a parallel universe to our own - A bit like being in a hole you cant get out of…. AA. HydroPump – Die & Addison Groove Die & Addison Groove force-fed the SP1200 with a secret 90’s nutrient formula, creating the pairs first ever collaboration – HydroPump. No spider mite here.