Sean Rafferty presents a special St David's Day programme from Cardiff and looks beyond the miners' lamps, leeks and laver bread to find out what it is to be Welsh in the 21st century. Poet Gwyneth Lewis demonstrates that the Welsh language is very much alive and well, but what of Welsh harpists and male-voice choirs? Traditional sounds mix with the latest in contemporary music-making with highlights from the stars of Welsh National Opera and the BBC National Orchestra of Wales.