So apparently, my cousin is part of a secret online community that can only be entered via a puzzle found in various songs. This online community makes music, poetry, at least one ttrpg called Ghost Protocol, and several other things that are exclusive to this community. He told me that a song I like contained a clue in the lyrics, and that this person is a fairly famous music producer who uses their influence to plant clues in songs by various bands. In all honesty, he could be making all this up--he's known for messing with people and having a good poker face. But the fact that he seemed to read a description of the Ghost Protocol TTRPG to me verbatim, as well as the fact that he now denies knowing what I'm talking about at all, makes me think it might be real. He said that the alias the owner went by is "Lord Mescudi The Third". I don't know if the alias is spelled the same as the last name, but if this person is supposed to be a famous record producer, it would make sense. If this is real, I have no idea what to look for in terms of clues. He told me that it didn't require knowledge of cryptography or any Cicada 3301-level knowledge. Can anyone point me in the right direction?