Partway through a meeting this evening over drinks, BBC Click presenter LJ Rich took Matthew Hawn and I out into the streets of Covent Garden to experience ‘glitching’ – her music hack that turns urban landscapes into music.

As a “shared auditory hallucination”, it’s kind of trippy. Essentially, it uses effects and harmonisation to turn the city scene into an entirely different audio soundscape – and quite a musical one at that.

LJ has both synaesthesia and perfect pitch, and assures us that London is in the key of B-flat. And so this stripped-down version of the glitching rig makes use of that fact with prepared sounds. With the full kit, LJ has a keyboard strapped to her, a laptop in a backpack, binaural headphone microphones, a portable wifi router and all sorts of other gadgets and bits.

She’s quite keen to bring the kit to Music Tech Fest in September, and let everyone simultaneously experience glitching. That would be interesting….