Scientists are developing ways of capturing human movement in three dimensions which would allow music to be created with the gesture of an arm.

It would eliminate the need for music technicians to twiddle hundreds of knobs to achieve the perfect sound.

The technique could also be used for scrolling a webpage, especially useful for people with limited mobility.

The system is being developed at the school of music in the University of Leeds.

Dr Kia Ng of the Interdisciplinary Centre for Scientific Research in Music is leading the project, which captures 3D movements using infra-red light.

The light is projected onto tiny reflective balls attached to clothing and monitored by 12 cameras.

The computer recognises the changing positions of the balls and turns different gestures into instructions for music software.

More here.