This concert footage of Unknown Mother Goose by Wowaka (ft. Hatsune Miku) has different choreography than the year prior. These songs don't normally receive much choreographing year-to-year, so why did this song get it?
Wowaka created some of the most notable vocaloid songs of all time. Rolling Girl, Two-Faced Lovers, and World's End Dancehall are names that will be very familiar to folks with basically any familiarity with vocaloid. He left one more iconic song where he vented his frustrations with the vocaloid community, Unhappy Refrain, then focused on his non-vocaloid music career after that.
In 2017, however, he returned to vocaloid with a new song using Hatsune Miku, Unknown Mother Goose. People wondered if this would mark a return to a (more limited and healthy) relationship with vocaloid and the surrounding community.
Then in early 2019, wowaka died unexpectedly of heart failure at 31.
Countless tributes came out, including one at the biggest annual vocaloid concert series, Magical Mirai. They're moving when you're invested in the community, but what they did at Magical Mirai 2020 was more subtle and touching. They re-choreographed Unknown Mother Goose to reflect how he performed it live with his band.
Wowaka grew frustrated with people attributing his work to Hatsune Miku and not looking to the artist behind it. So Magical Mirai departed from their usual approach to choreography to let the artist shine through more. And that's something special.