the A side of which plays inside out. In 1999, English Noise Artist Paul Nomex released a Parallel Groove 12-inch, "Are you more than just a product of your influence" that plays from the inside out on both sides at both 16 and 78 speeds. In 2014, American alternative rock group Camper Van Beethoven released a two-disc reissue of their Key Lime Pie album, featuring one side that plays the song "Closing Theme" from the inside out at 45 rpm. In the 2010s, German classical music label Tacet issued some classical recordings that played from the inside out, including Ravel's Boléro (2013) and the fourth movement of Beethoven's Ninth Symphony (2016). Early multiple track (i.e., stereophonic) format Before the development of the single-groove stereo system circa 1957, at least three companies: Cook Records, Livingston Audio Products, and Atlantic Records, released a number of "binaural" recordings. These were not created using binaural recording techniques, but rather one side of each record consisted of two long, continuous tracks — one containing the left channel, and the other containing the right channel. It was intended that the buyer purchase an adapter from Cook Laboratories or a tonearm from Livingston that allowed two cartridges to be mounted together, with the proper spacing, on a single tone arm. Over 50 records were released using this format. Quadraphonic formats Quadraphonic records present four channels of audio, requiring specialized pickups and decoding equipment to reproduce the two additional channels' signals from the groove. Disc noise reduction formats In the 1970s and 1980s, more than a thousand audiophile records were produced with audio tracks specially encoded to be played back through various noise reduction systems in order to reduce noise and increase the dynamic range. Systems employed include dbx disc (1973–1982), Telefunken/Nakamichi High-Com II (1979–1982), CBS CX 20 (1981–1982), and UC (1983–1989). Vibration-resistant discs Highway Hi-Fi was a system of proprietary records and players designed for use in automobiles, utilizing a slower play speed and high stylus pressure. Unusual materials and uses With their origin stretching back to the dawn of recorded sound at the turn of the 20th century, flexible recording media have been made from a variety of materials including foil, paper, and–in the 1950s–thin flexible vinyl known as flexi discs. Thin, flexible paper-based records were briefly popularized in the 1930s by Hit of the Week Records and Durium Records. "Melody Cards" were popular in the