I'm going to support Reenk here. As noted before, I think the songs are GH's attempts to give the town hints. Lyrics for the latest song:

Spoiler Alert, click show to read: 
Lime and limpid green, a second scene
A fight between the blue you once knew.
Floating down, the sound resounds
Around the icy waters underground.
Jupiter and Saturn, Oberon, Miranda and Titania.
Neptune, Titan, Stars can frighten.
Lime and limpid green, a second scene
A fight between the blue you once knew.
Floating down, the sound resounds
Around the icy waters underground.
Jupiter and Saturn, Oberon, Miranda and Titania.
Neptune, Titan, Stars can frighten.
Blinding signs flap,
Flicker, flicker, flicker blam. Pow, pow.
Stairway scare Dan dare who's there?
Lime and limpid green, the sounds around
The icy waters under
Lime and limpid green, the sounds around
The icy waters underground.


The bolded bits are the only things that seem significant to me. Green. Green can mean two things in the context of this game: Moderators or pevergreen. The only moderator left alive is Andres.

FoS: Andres and pevergreen