Complex sentence: St David's Hall is the National Concert Hall and Conference Centre of Wales, and hosts the annual Welsh Proms, the Orchestral Series attracting renowned conductors and performers and the world famous biennial Cardiff Singer of the World competition.
Split into simpler sentences: St David's Hall is the National Concert Hall and Conference Centre of Wales. It hosts the annual Welsh Proms, the Orchestral Series attracting renowned conductors and performers and the world famous biennial Cardiff Singer of the World competition.