Hear tracks from the Key Sessions archives by Swift Technique and Lady (playing Johnny Brenda’s on Saturday)

You’ll hear two musical forces of nature from the Philly scene take to the stage at Johnny Brenda’s tomorrow night: the jam-funk maelstrom of Swift Technique, who are getting pumped for their first full-length release later on this year, and the rainy-day torch song comfort of Lady, still riding high off their Ropeadope Records release You & Me from last fall. Both bands have spent some time at WXPN studios, and you can download two tracks that each recorded for The Key below. Listen to Lady’s entire Key Session here, look for Swift Technique’s later on this summer. Lady and Swift Technique play Johnny Brenda’s, 1201 N. Frankford Ave., on Sat. May 5. Tickets to the 21+ show are $10.