Indie rockers Stems has described its sound as “future past,” or what one would hear on an oldies station decades from now. Or , perhaps , if they hopped in a DeLorean back in the 19 80s and imagined what they perceived music of the 2000s to sound like. It’s fitting, then, that members Justin Seeker, Joshua Weiss, Michael Voris and Joel McAdams decided to debut their new release, "Your Sullen Ways are Getting Boring", on cassette tape.