The Thin Air (Semi)-Alternative Christmas playlist is a great alternative for people who want to celebrate Christmas musically without having to resort to the same tracks played over and over again in supermarkets and shopping centres, some of us would rather spend Christmas back in the forest – preferably on a mountain – sharpening our axes and waiting for society’s inevitable collapse. With regards to this, here are some albums for the Winter. Agalloch – The Mantle  A beautifully grey album from Agalloch (pictured, top), The Mantle needs to be listened to in its entirety in order to fully comprehend the…