おとあな
音孔
2. Tone holeA tone hole is an opening in the body of a wind instrument which, when covered by a key, alters the pitch of the sound produced. The resonant frequencies of the an air column in a pipe are inversely proportional to the pipe's effective length. For a pipe with no tone holes, the effective length is the physical length plus corrections for end effects. A shorter pipe, in other words, produces higher notes.
Read “Tone hole” on English Wikipedia
Read “音孔” on Japanese Wikipedia
Read “Tone hole” on DBpedia
Read “Tone hole” on English Wikipedia
Read “音孔” on Japanese Wikipedia
Read “Tone hole” on DBpedia
音孔 【おんこう】
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