Polyphony and monophony in instruments harpejji and the Chapman stick). Multiphonics can be used with many regular wind instruments to produce two or more notes at once, although this is considered an extended technique. Explicitly polyphonic wind instruments are relatively rare, but do exist. The standard harmonica can easily produce several notes at once. Multichambered ocarinas are manufactured in a number of varieties, including double, triple, and quadruple ocarinas, which use multiple chambers to extend the ocarina's otherwise limited range, but also enable the musician to play more than one note simultaneously. Harmonic ocarinas are specifically designed for polyphony, and in these instruments the range
WFPG-TV WFPG-TV WFPG-TV was one of the earliest UHF television stations in the United States, licensed to Atlantic City, New Jersey. The station broadcast over channel 46 from December 1952 until May 1954, and held affiliations with all four major networks of the era: NBC, CBS, ABC and DuMont. Geographically, New Jersey is sandwiched between New York City and Philadelphia. Between them, the two large cities were granted most of the available VHF channels. The only VHF station assigned to New Jersey was located in Newark, the state's largest city. However, channel 13—WATV, later to become WNTA-TV (and now WNET) --