Material Object is the main production alias of veteran Australian producer Andre Ruello. His focus is on the most psychedelic forms of techno and ambient. As well as his own productions he has collaborated extensively with Uwe Schmidt (Atom™) and the late Pete Namlook, including releasing on Namlook's Fax label. Ruello has performed and DJed live all over the world, including a number of appearances at Japan's Labyrinth festival. The summer of 2024 sees him give his debut live performance in the UK.

Mono is Ruello's second album for Old Technology Records, Surgeon and Dan Bean's record label focussing of psychedelia in all its varied forms. Taking the approach of his previous release Colour and cranking the intensity up by an order of magnitude, this album stretches and pretty much breaks the conventional definition of 'ambient', taking it to new and deeply rewarding zones of revelation.