Portal 2 OST. PotatOS Lament Choir

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Ok, fine. What you see is an arrangement for SATB choir of PotatOS Lament. Prime melody has been written down by ear so there coud be some mistakes. And I'd appritiate if someone coud highlight them for me in the comments.

[Themostinconvienent]

For anyone wondering, the song played just after potaOS lament is The National- Exile Vilify.