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A bass drum is a large drum that produces a note of low definite or indefinite pitch. Bass drums are percussion instruments and vary in size and are used in several musical genres. Three major types of bass drums can be distinguished. * The type usually seen or heard in orchestral, ensemble or concert band music is the orchestral, or concert bass drum (in Italian: gran cassa, gran tamburo). It is the largest drum of the orchestra. * The kick drum, a term for a bass drum associated with a drum kit. It is struck with a beater attached to a pedal, usually seen on drum kits. * The pitched bass drum, generally used in marching bands and drum corps. This is tuned to a specific pitch and is usually played in a set of three to six drums. ==Description== A bass drum is typically cylindrical with the diameter much greater than the height. There is normally a struck head at both ends of the cylinder. The heads may be made of calf skin or plastic. There is normally a means of adjusting the tension either by threaded taps or by strings. Bass drums are built in a variety of sizes, but size has little to do with the volume produced by the drum.〔Del Mar, Norman (1981). ''Anatomy of the Orchestra''. ISBN 0-571-11552-7.〕 The size chosen being based on convenience and aesthetics. 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「Bass drum」の詳細全文を読む スポンサード リンク
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