Summer of Lore #24: The Quest for the Diamond Shield

This song tells the story about a young warrior's final test before graduating from the warrior's academy. Not only is it a never ender (it can go on forever if you let it), it is also notable for the refrain in nonsense Ruhar (the elven tongue) that serves as the audience's response: 

Hi rì him bò i yò bha rò ha
Hi rì him bò, hìrì ri ri yù,
Hi rì him bo i yo bha rò ha....

The song is sung a cappella (but versions with instruments are not unheard of) in a call and response fashion--the minstrel sings a two line verse, and the audience replies by singing along with the response.  If the audience is not familiar with the song, the minstrel will teach the audience the response before s/he performs it.

Because of its popularity, many other songs are also set to this tune, complete with the same response.