Listen to Triangulum (The Triangle); Triangulum Australe (The Southern Triangle) online. Triangulum (The Triangle); Triangulum Australe (The Southern Triangle) is an Instrumental language song and is sung by Janelle Nadeau. Triangulum (The Triangle); Triangulum Australe (The Southern Triangle), from the album Jordan Nobles: The Night Sky, was released in the year 2024. The duration of the song is 0:28. Download Instrumental songs online from JioSaavn.