A band from Denmark, named Between Music, recently performed submerged in tanks. The five-piece group used specially designed instruments and a vocal technique created to allow underwater singing.

AquaSonic” is the name of the performance and it features the five performers playing custom-made instruments and singing while entirely submerged in water tanks. The production’s website states that years of research went into the performance in order to create the optimal instruments and techniques.

The artists conducted countless experiments in collaboration with deep-sea divers, instrument makers and scientists to develop entirely new, highly specialized subaqueous instruments. These include an underwater organ or hydraulophone, crystallophone, rotacorda, percussion and violin.

No breathing apparatus is used during the show, instead the band members come up for air at moments that are worked into the music.

The music is certainly unique, creating a haunting sound that definitely sets it apart.

See them in action here: