It's for game night, the kind with friends around a table and no instrument, and I'd like to hear from people who run game nights.
Put it on a laptop or TV, everyone scans the QR, and each phone gets a few strings of the same guitar. Tap your dot when it hits the ring and the big screen plays your note; miss and the song has a hole in it. Nobody holds a guitar, but the table plays one.
In the clip four phones play House of the Rising Sun, and at 0:12 the bass phone leaves. The song keeps going with a gap where the low notes were. The clip is four phone screens recorded in a browser, not a filmed table.
Free, no account, nothing to install: https://overflow.games/unison/?door=lemmy-gaming
Where does it fall apart with your group? Too easy, too few players, too loud?