【关于音乐乐器的英语短文不要太长,适合初二英语水平,稍微简单-查字典问答网
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  【关于音乐乐器的英语短文不要太长,适合初二英语水平,稍微简单一点,不要有太多生词,读起来大概1-2分钟最好涉及长笛】

  关于音乐乐器的英语短文

  不要太长,适合初二英语水平,稍微简单一点,不要有太多生词,读起来大概1-2分钟

  最好涉及长笛

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2020-02-2713:30
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戴玉超

  Amusicalinstrumentisadeviceconstructedormodifiedwiththepurposeofmakingmusic.Inprincipleanythingthat,producessound,andcansomehowbecontrolledbyapersonplayingit,canserveasamusicalinstrument.Theexpression,however,isreservedgenerallyforitemsthathaveaspecificmusicalpurpose.Theacademicstudyofmusicalinstrumentsiscalledorganology.

  Voice,thatis,thehumanvoice,isaninstrumentinitsownright.Asingergeneratessoundswhenairflowfromthelungssetsthevocalcordsintooscillation.Thefundamentalfrequencyiscontrolledbythetensionofthevocalcordsandthetonequalitybytheformationofthevocaltract;awiderangeofsoundscanbecreated.

  Stringinstrumentsgenerateasoundwhenthestringisplucked,strummed,slapped,etc.Thefrequencyofthewavegenerated(andthereforethenoteproduced)usuallydependsonthelengthofthevibratingportionofthestring,itslineardensity(massperunitlengthofstring),thetensionofeachstringandthepointatwhichthestringisexcited;thetonequalityvarieswiththeconstructionoftheresonatingcavity.Examples:guitars,violinsandsitars.

2020-02-27 13:34:08
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