The rip is a cover of "Heartache", specifically a vocal cover with a kazoo accompaniment.
The rip opens up with the phrase "I will never let you leave these ruins, my child. You are breaking my heart." This phrase is a reference to how Toriel, a character from Undertale, attempts to prevent the player from leaving the Ruins. At 1:21, the phrase "I'm a furry" is sung, because Toriel is an anthropomorphic goat.