Match for five lemonade with a straw. (It's not called that but that's what it sounds like)

It is dark. Basses thump. An intoxicatingly sweet female perfume hangs in the air, a child cries. AquaSonic has just started, and I already want to leave.
What possesses a musician to go head-to-head? Our Danish correspondent went to find out.

AquaSonic is an ode to water, played by Between Music, a collective of five Danish musicians. They make underwater music. Literally: they perform in five aquariums with their own instruments. AquaSonic premiered in the Netherlands last year,...