Evolution Device is a kind of hymn to the origins of rock in the early 1970s.
But it is also a love story between a man, a woman, and a guitar.
The woman in the story is a Muse, corporeal and ephemeral.
She can be both and, quite naturally, she can also fall in love.
All well and good.
But the author adds yet another twist--a guitar called the Lady.
Once mused, the instrument, too, becomes a mysterious source of power.
So, the story is then about a threesome: t.