Thefilm'sprotagonistHeLunisfondofmusic,heusedtohavemyownband,andplayedsmallconcerttour,hehasamagnificentdream--createdtheirownsymphony.However,thefixedworkisamust,heneededasteadyincome,becauseheandhiswifehavealove.Insupportofhiswife,middle-agedHeLundissolvedthebandtoteachschool,atthesametimeinthesparetimetocontinuethecreationofasymphony. 　　HeLunfirstclassisnotsmooth,evenverysimplequestionshavenoanswer,bandrehearsingevenbasiccoordinationcannotdo.Inhiswife'sencouragementandsupport,hegrewaccustomedtosuchalife,dayschoolteaching,counselingtheband,gavethegoldenhairgirlcounselingclarinet,withgreatconcentrationtocreatetheirownsymphonyofthenight.Asemesterhaspassedquickly,HeLun'sstudentintheexamination,"thewholearmywaswipedout."theblondegirlstillblowingoutcompletemelody.HeLunwastheprincipalcriticism,thiscriticismthathebegantoseriouslyreflectonthemselvesinteachingtheexistingproblems.HeLunstartedfromthestudentslikedrockmusictoexplainthewondersofmusic,hebegantosmile,andhumour,hisclassroomatmospheregraduallybecomeactiveagain.BlondegirlinreadytogiveupwhenHeLunclarinetgetinspired,finallyinhisaccompanimentcompleteplayedatune. 　　Hissontotheworld,HeLunwasoverjoyed,hopingtotrainhimtobecomeamusician,butneverimaginedsonwasborndeaf.Goaroundseeking,conclusionis--children'shearinghasbasicloss.Hiswifegiveverygreatefforttoaccompanyhislearningofdeafchildrenpeculiarwayofcommunication,soasnottoaffecttheHeLunteachingandwriting. 　　Inorderfortheanniversarycelebrationshow,HeLunisinchargeofamusicalrehearsal.ActressRowenawasrefinedandcultureddeeplyattractedtohim,shefellinlovewithherteacher.WhileRowenasongalsoinspiredHeLun'sinspiration,hewillbetheirnewcompletesongnamed"rowena".Theperformancewasagreatsuccess,Rowena'svoicehasconqueredallthepeoplepresent.Aftertheendoftheshow,RowenadecidedtogotoNewYork,andbeforeleavingtoexpresshislove,shehopedthatHeLuncanownandwalktogether......HeLun'schoicetomakealltheaudiencewasrelieved,hechosehisownfamily,toRowenaencouraged,butnotlove 　　Thesonbecauseinaudible,oftenmakemeaninglessnoise,interruptedHeLun'screation,ofteninconflictbetweenfatherandson,hisson'slackofpatiencetolethiswifeveryunhappy.OnRowenarefusedtomakehimawareofhisfamilyisimportant,asindicatedbyhisson.Hedecidedtogotomyson'sschoolheldadeafconcert,littleHeLunandotherdeafpeopletogether,fromthestageflashinglights,movingexperiencewithmusic. 　　HeLuntosign,sang"BeautifulBoy"JOHNLENONCloseyourHaveno--eyes/fear/Themonster'sgone/Heontherunand'syourdaddy'shere/Beautiful,beautiful,beautiful/Beautifulboy/Beforeyougotosleep/Sayalittleprayer/Everydayineveryway/Itgettingbetterand'sbetter/Outontheoceansailingaway/Icanhardlywait/Toseeyoucomeofage/ButIguesswe'llbothjusthavetobepatient/Causeit'salong'waytogo/Ahardrowtohoe/Yesitsalongwaytogo......HeLunwasveryhappy.Thatsameevening,HeLunfoundhissoncouldactuallyusedbodyfeelthemusicmelody.HeLunheartsfilledwithanunspeakablejoy.Thefinalschoolduetospendingincreasinglynervous,decidedtocancelthemusic,artanddramaclassesrelievetheec