All the official tracks-reversed were posted here a few months back.
Summer 1 https://itch.io/post/13825983
Summer 2 https://itch.io/post/13826450
Summer 3 https://itch.io/post/13826499
Summer 4 https://itch.io/post/13829823
Summer 5 https://itch.io/post/13829831
Summer 6 https://itch.io/post/13831901
Summer 7 https://itch.io/post/13831905
Winter 1 https://itch.io/post/13834757
Winter 2 https://itch.io/post/13837615
Winter 3 https://itch.io/post/13837898
Winter 4 https://itch.io/post/13837991
Desert 1 https://itch.io/post/13838006
Desert 2 https://itch.io/post/13840273
Desert 3 https://itch.io/post/13838134
Desert 4 https://itch.io/post/13837855