In the United States, the East Coast and West Coast have rivalries across food, sports, music and more. But there’s another rivalry that’s less well known, but just as important. This standoff created sounds that were unlike anything that had been heard before. It redefined what a musical instrument could be. And it changed the sound of pop music forever. Featuring journalist Ryan Gaston and composer David Rosenboom. Watch Welcome to Synth, our first original Youtube video. Follow the show on Twitter, Facebook, & Reddit. Sign up for Twenty Thousand Hertz+ to support the show & get our entire catalog ad-free. If you know what this week's mystery sound is, tell us at mystery.20k.org. Read Ryan Gaston’s tech & music articles on Perfect Circuit’s SIGNAL blog. Listen to David’s Rosenboom’s Buchla music via Black Truffle Records. Twenty Thousand Hertz is sponsored by Better Help. Try online therapy at betterhelp.com/20k and get on your way to being your best self. Use promo code 20k to get $20 off your next purchase over $100 at American Musical Supply. Subscribe to Björk's Sonic Symbolism show wherever you get your podcasts. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/synthwar Learn more about your ad choices. Visit megaphone.fm/adchoices