Listen to Calon Lân (Arr. for Choir by John Davies) online. Calon Lân (Arr. for Choir by John Davies) is a Welsh language song and is sung by Graham Elliot, Treorchy Male Voice Choir and John Cynan-Jones. Calon Lân (Arr. for Choir by John Davies), from the album Welsh Male Voice Choir Tradition: Treorchy Male Voice Choir, was released in the year 2017. The duration of the song is 2:11. Download Welsh songs online from JioSaavn.