▲ 1 ▼ A demonstration of "mask whistling" 6 years on, featuring gratuitous register switching. (www.viddler.com) submitted 6 months ago by Elting@piefed.social to c/whistling@piefed.social 1 comment fedilink hide all child comments It is still pretty hard to whistle with a small embrochure, but there is so much posibility.