Originally composed for the Martini Elettrico festival hosted by Conservatorio di Musica Giovan Battista Martini of the University of Bologna in April 2018, the piece Barcelona Metro is founded upon a recording captured many years ago of a busker in a Barcelona Metro station playing a rendition of "Every Breath You Take" by The Police. The sample has been heavily processed using the Iota granular looping Max for Live instrument and can be heard throughout the piece; most notably in the introduction and breakdown sections. In addition to this, a multitude of LFOs employing various waveforms have been used to control a vast array of parameters, from simple panning to the timbre of the kick drum, the glitchy beat repeat effect applied to the drums, and the note duration of the arpeggiated lead. There is also an arpeggiated bass that slowly moves in and out of synchronization with a second lead that, for the most part, mimics the notes played in the bass only higher in register. The accumulation of these stochastic processes results in a piece that is, at times, chaotic and unpredictable, whilst simultaneously retaining many stylistic traits more commonly associated with popular electronic music.