Abrasive, intense and about to erupt at any moment. So begins Flow, a new piece by Nokuthula Ngwenyama for the Takács Quartet. Coaxing peculiar sounds out of centuries-old string instruments, the ...

1. Guqin The guqin is a Chinese zither, a plucked instrument 120cm-130cm (47 inch-51 inch) long with seven strings. It is one of the oldest instruments in China, dating back 3,000 years.