Herio 6 o gerddorion i gyfansoddi trefniannau gwerin newydd, a hynny mewn llai na 12 awr. Six musicians have 12 hours to write new arrangements of Welsh folk songs.
Herio 6 o gerddorion i gyfansoddi trefniannau gwerin newydd, a hynny mewn llai na 12 awr. Six musicians have 12 hours to write new arrangements of Welsh folk songs.