Listen to By Cool Siloam's Shady Rill online. By Cool Siloam's Shady Rill is an English language song and is sung by Treorchy Male Voice Choir and John Haydn Davies. By Cool Siloam's Shady Rill, from the album Welsh Male Voice Choir Tradition: Treorchy Male Voice Choir, was released in the year 2017. The duration of the song is 2:36. Download English songs online from JioSaavn.