The lyrics "Twin, where have you been?" come from the song "Made For Me" by Muni Long. The song talks about a deep emotional connection with someone special, expressing feelings of rarity and love that are hard to find again. The line "Twin, where have you been?" is repeated as a kind of call or yearning for that person who knows the singer intimately and with whom the singer shares an unmatchable bond.
If the full lyrics or more details about the song are needed, that can be provided as well.