Alman (Allmayne, Almain) by Robert Johnson (c.1583–1633). This is an arrangement of the original lute work. It was one of my favourite works to play on guitar when I was growing up. Once you learn the fingering and the later-half web of motives the piece is not very difficult. It might take some time to smooth out the changes but it’s well worth the effort.
Free Sheet Music (PDF)
YouTube Performance & Lesson