Old curtains being moved on metal curtain rail - one, long slide by wlabarron. CC0 1.0. Playback speed adjusted to match the curtains; reversed when closing.
boo.wav by dr_skitz. A small group booing. CC0 1.0. Played at a lower volume.
awww 01.wav by tim.kahn. Creative Commons Attribution 4.0. A group saying “aww” in disappointment. Played at a lower volume; no other changes.
Recordings sourced from Freesound. These credits cover sound effects only.