The HPSTR Pyramid is an attempt to create an alternative — but native to digital world — interface, to conventional knobs and slide controls. It’s an approach to have the same basic and generic functionality a knob has but to achieve it with a more natural interaction. I wanted to create an instrument that is generic enough to be used in different contexts and to play different kinds of music in a similar way it is possible with an analog instrument like a drum or a guitar. Like an analog instrument it sould have its own kind of interaction (e.g. a trombone is operated with a telescopic slide mechanism or a violine is played with a special bow) to eventually create sound that is distinguishable from other digital instruments. Since it is possible to play trigger or simulate every sound with a digital instrument, it is not possible to make it distinguishable by giving it its own sound. A digital instrument has to find its uniqueness in superior musical structures like composition, transitions.