In 1996, The Edge and Brian Eno played on a little known album, Undark 3396. The Edge contributed chase guitar.
This was the brainchild of the artist Russell Mills. Arter disputes over payment with the original label, em:T, Mills re-released it with the title Strange Familiar in 2000 through Bella Union in the UK, the label of ex-Cocteau Twins Robin Guthrie and Simon Raymonde.
Instinct released it in the USA under its original title Undark One: Strange Familiar.
Interestingly, Michael Brook, who developed the infinite guitar, also contributes to the album.