The fourth (of five) installment in the Podcast Cafe’s Purple Reign musical mix tribute series to Prince opens up with an abstract funk-jazz track from his obscure “Xpectations” album, then segues in to the start-stop funk of “Dance On” from “Lovesexy” and a remix of “Irresistible Bitch.” It’s a promising start and lets the listener know right away that they are in the hands of a Prince master archivist and mixmaster supreme. This isn’t any kind of Greatest Hits compilation -- expect rare tracks, remixes, B-sides and other surprises that range the entire 30-some years of the Purple One’s extravagant career.

Other tracks along the way include “Call My Name,” “Raspberry Beret,” “Hot Thing,” “Let’s Pretend We’re Married,” “Thieves in the Temple,” “Lemon Crush,” “New Power Generation,” “Joy in Repetition,” “The Beautiful Ones,” “Rainbow Children,” “Private Joy,” “Paisley Park,” Do Me, Baby” and “Positivity.”

You can find Purple Reign episodes 1-3 at http://podcastcafe.org/episodes/files/category-prince.html.