Welcome to The Weekend Stream, a relaxing weekly review of notable digital-only catalogue titles. There may be no CD or vinyl, but there’s plenty of great new/old music to usher you into the weekend. Rarities and oddities abound: cartoon soundtracks, early works from country legends, and more! Pat Irwin, Rocko’s Modern Life (Original Music from the Series) (Nickelodeon) (iTunes / Amazon) Joe Murray’s colorful cartoon about a harried wallaby and his misadventures was one of Nickelodeon’s edgier cartoons in the early-to-mid ’90s – a similar edge to The Ren & Stimpy Show,…