All lovers have their own favourite music that chimes with the beat of their hearts. Entire love affairs are conducted to the melody of "our song". In the latest piece from Suspect Culture, one couple becomes the focus for an intriguing meditation on the universal language of music and numbers, how big the world is and how hard it is to stay connected to the one you love. One of the interesting things raised by this performance is the question: which comes first, the emotion or the music? Are the feelings generated by music real or simulated? When does the simulated become real?
The musical has never been rock'n'roll in British theatre. Music has always been integral to the work of Suspect Culture and this attempt to find a new contemporary form of music-theatre is naturally a brave progression for a company that has become the epitome of Scottish cool. But in creating a play and dropping a band on it, they have squashed the theatre side of the performance completely flat. Or maybe it's because they have also flung so much else into the mix including lots of video and visual motifs. Unlike these lovers, the disparate bits of the show fail to connect; they are all calling a different tune on the eye, ear and heart that leads to sensory overload.
· Until August 23. Box office: 0131-228 1404.