Today we accept a listener's invite up to Hamburg, for a visit with A.R. + Machines.Achim Reichel grew up near the docks, listening to sea shanties. He found work at the Star-Club waiting tables, but soon enough he was on its stage playing with the Rattles—and running with Lennon & McCartney.Come 1971 he ditched his bandmates for a tape machine. Krautrock followed. Turns out Achim was just passing through on his way to other sounds and traditions. But this green le...