This came out last year, but it’s good to remind people of one of the more interesting Grateful Dead recordings circulating. It’s all of the Grateful Dead’s tuning for the year 1977; more than an hour and a half of tuning up.
If you’ve ever attended a Dead show, you know that the tuning was part of the show. It could be creative, or boring, or just long. So Michael David Murphy took available recordings and edited all of 1977’s tuning into a single tuning experience.
You can also grab it on archive.org, if you’re interested in the 24-bit FLAC version, for example.