<kbd id='46b412492b'></kbd><address id='46b412492b'><style id='46b412492b'></style></address><button id='46b412492b'></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.

          向日葵视频app下载无限观看

          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.

          向日葵视频app下载无限观看

          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.