Cor Aelwyd Chwilog This image appears in the gallery:Music For Youth Proms 2015: Wednesday 28. Cor Aelwyd Chwilog Superb sounds at the final night of the Music For Youth Proms 2015, courtesy of Cor Aelwyd Chwilog. Photo: Joe Okpako 79 images See the full gallery: Music For Youth Proms 2015: Wednesday