https://youtu.be/ZQSxzWkgS8s

 

악보구입[하모니엘] ▶ https://harmonyel.imweb.me/shop_view/?idx=133

 

파트연습 ▶ https://youtube.com/playlist?list=PLuit-_q-9iTG4JJmPnq2cRomJbaDNsqSK

 

피아노 반주 mr ▶ https://youtu.be/7b2Yfv_Erjg

 

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