Youtubeko deskribapena:
The BBC Symphony Orchestra and chorus with the BBC Singers under Jiri Belohlavek play Janacek's Glagolitic Mass at the First Night of the Proms at the Royal Albert Hall in London.
For more information on this prom, please visit: http://www.bbc.co.uk/proms/whats-on/2011/july-15/2
