<kbd id='499c40bf19'></kbd><address id='499c40bf19'><style id='499c40bf19'></style></address><button id='499c40bf19'></button>

          A musical instrument is a device constructed or modified for the purpose of making music. In principle anything that produces sound can serve as a musical instrument.

          The expression, however, is reserved generally for items that have a specific musical purpose. The academic study of musical instruments is called organology.

          A musical instrument is a device constructed or modified for the purpose of making music. In principle anything that produces sound can serve as a musical instrument. The expression, however, is reserved generally for items that have a specific musical purpose. The academic study of musical instruments is called organology.

          成人动漫在线观看

          is a device constructed or modified for the purpose of making music. In principle anything that produces sound can serve as a musical instrument. The expression, however, is reserved generally for items that have a specific musical purpose. called organology.

          成人动漫在线观看

          is a device constructed or modified for the purpose of making music. In principle anything that produces sound can serve as a musical instrument. The expression, however, is reserved generally for items that have a specific musical purpose. called organology.