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The lap steel guitar is a type of steel guitar, an instrument derived from and similar to the guitar. The player changes pitch by pressing a metal or glass bar against the strings instead of by pressing strings against the fretboard. There are three main types of lap steel guitar: * Lap slide guitars, the first developed, which use a similar sound box to a Spanish guitar. These were originally called Hawaiian guitars and included versions that had a factory raised nut, but also include Spanish guitars with a nut extender (a device that fits over the nut to raise the strings). * Resonator guitars, particularly those with square necks, but also round neck versions with a raised nut. * Electric lap steel guitars, which include the first commercially successful solid body instruments. These were originally marketed as electric Hawaiian guitars. In addition to the lap-played model, a closely related version called a console steel guitar is supported on legs (but does not include the pedals or knee levers of the pedal steel guitar. Electric lap steels typically have six to ten strings. Lap slide and resonator guitars may also be fitted with pickups, but do not depend on electrical amplification to produce sound. ==Description== A lap steel guitar's strings are raised at both the nut and bridge ends of the fingerboard, typically to about half an inch. The strings are too high to contact the surface of the neck, so frets, if present, are only for reference and are often replaced by markers. Some lap steel guitars can be converted between lap and fretted playing, or are modified versions of conventional guitars—the only difference is usually string height. Round-necked resonator guitars set up for steel playing fall into this category. Instruments designed exclusively as lap steel guitars typically have modified necks that make fretted playing impossible. The ''hollow neck'' acoustic lap steel, developed by Chris Knutsen and popularized by Weissenborn, extends the body cavity behind the neck all the way to the head. The square-necked resonator guitar has a strengthened square profile neck, allowing heavier string gauges and/or higher tunings that would normally be considered impossible (or certainly ill-advised) on a conventional guitar. The electric lap steel guitar typically incorporates the entire neck into the solid body of the guitar, again providing extra strength to allow a greater variety of string gauges and tunings. Console steel guitars, typically with more than six strings and/or multiple necks, are rarely played in lap steel fashion (without their legs), but are often referred to as ''lap steel guitars'' by many makers and authorities. See ''table steel guitar''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lap steel guitar」の詳細全文を読む スポンサード リンク
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