Radio 3 will abandon its usual schedule for 12 hours on 30 October for River of Musicthe longest ever continuous music broadcast on BBC Radio.

From 9am to 9pm, the station will broadcast 70 pieces reflecting the diversity of styles championed over its 70 year history.

The music played will encompass classical, jazz, world, medieval, electronic, and tv scores. The full playlist, which will not be revealed until the broadcast, contains works which are each connected to a particular year and a historical, political or cultural happening with musical resonance at the time.

Some of today’s leading musicians have contributed works to the broadcast, and will explain their choices in videos available on the website.

No presenters will talk on air; according to a statement, the only voices listeners will hear ‘will be raised in song’.

The music played will be listed online, and Essential Classics presenters Sarah Walker and Rob Cowan will contribute to a live blog. Images and features will also be posted by Radio 3 throughout the day.

‘When the Third Programme first took to the airwaves, one of its founding aims was to connect audiences with remarkable, undiluted music and culture of all types, without being too constrained by a rigid schedule,’ said Radio 3 controller Alan Davey.  ‘Over the next seven decades, the Third – and then Radio 3 – would become known for regularly putting out long works of music and drama in full, and broadcasting every single BBC Proms concert each year.

‘In devoting a whole day of programming to an uninterrupted stream of music, River of Music is a continuation of this philosophy, and shows that the pioneering spirit of the Third is alive and well in Radio 3.’

Listeners will be able to stream the entire broadcast online for 30 days after it has finished.