| 摘要 |
<P>PROBLEM TO BE SOLVED: To vary radiation characteristics with respect to sound production in a branch tube where a plurality of tubes are combined. <P>SOLUTION: A wind instrument includes: a branch wind instrument using a branch tube having a main tube part and an auxiliary tube part where the internal spaces are connected by a connection part; and an attachment part 30 attached to the branch wind instrument. The attachment part 30 includes an attachment tube 31 and a first mounting part 34 which removably mounts the attachment tube 31 on the main tube part 10. The internal space of the attachment tube 31 and the internal space of the main tube part 10 are connected in a downstream end part 15L of the main tube part 10, and a cross section in the downstream end part 15L of the internal space formed by the main tube part has an area smaller than that of a cross section including the downstream end part 15L of the internal space formed by the attachment tube 31. <P>COPYRIGHT: (C)2013,JPO&INPIT |
