in striking direct contrast, with White painted cases, Black lettering and graphics and "White-washed" wood side panels that were not completely painted over but just enough so that you could still see the wood grain show through. These units were sometimes referred to as the "Lunar Whitewash Editions" because of their characteristic appearance being somewhat similar to that of the spacecraft that NASA used for their Lunar excursions. April's fool models The 4'33" In late March 2005 Moog Music's website announced a new moogerfooger as an April Fool's Day joke. The moogerfooger 4'33" supposedly had only one button, which would silence any inputs for exactly 4 minutes and 33 seconds. The name and function of the unit was a reference to John Cage's famous composition 4′33″. The MF / FM In late March 2007 Gizmodo.com ran an article announcing the Moogerfooger MF/FM. Pictured was an effect pedal modeled after the classic Moogerfooger design with a linear FM Tuner and a Green rocker switch. The device supposedly was able to lock into FM radio frequencies to create sounds weirder than ever before. The April 1st availability date was a giveaway that this was just another April Fool's Day joke. In theory however, if the device did exist it could have operated as described. Aleatory or chance operations were tools that 20th Century Music composers would use in their pieces to introduce random elements or "found objects" into performances of their works. Radio broadcasts in particular were largely unpredictable, plus they added elements of noise, static and different signals fading in and out as you would tune into different stations that would be used as texture in these pieces. The joke alludes to works by composers like Karlheinz Stockhausen, whose compositions Kurzwellen and Hymnen incorporate sounds from Short Wave Radio broadcasts. In popular music The Beatles used a live radio broadcast in their song “I Am The Walrus”, and Pink Floyd's “Wish You Were Here” opened with randomly changing the tuner frequency through live broadcasts on David Gilmour's car radio, which the songs opening bars were then also transmitted to, to complete the effect. MF-106TC On April 1, 2009, Moog Music's website announced another new moogerfooger as an April Fool's Day joke. The MF-106TC Analog Time Compressor supposedly had the ability to compress the time stream rather than expanding it like a delay pedal, which would then give musicians the ability to