Work no. 189 comprises 39 identical metronomes. Each one is set and calibrated incrementally across the full spectrum of tempo speeds (from fast, presto, to very slow, lento), producing a rhythmical cacophony. The clockwork mechanisms indicate the exact tempo of a musical composition, but what comes across in this artwork is the irony that a standardised, mass-produced product – one that seems to lack musicality – could be so important in the creation of unique works of music.