If you’d like to have what to do when you see someone choking on a huge chunk of steak spelled out for you, then Ragnar Kjartansson’s video for Sigur Rós’ “Ég Anda” — the first track off of the band’s forthcoming release Valtari, which we mentioned earlier in our streaming albums roundup — is required viewing. In fact, it’s such a delightfully strange concept for a music video that we’re going to go ahead and say that it’s required viewing even if you’re a seasoned Heimlich pro. According to Pitchfork, the educational clip is the “first of a series from 12 directors for a mystery film experiment,” with videos from the likes of John Cameron Mitchell, Ryan McGinley, and Ramin Bahrani set to debut in the weeks to come. Enjoy — just maybe not while you’re eating a late afternoon snack.