https://www.youtube.com/watch?v=2r_e53y8ddc 請同學在家可跟著影片練習，或是練習二部演奏、演唱。
https://www.youtube.com/watch?v=SIFqnEoctI4
https://www.youtube.com/watch?v=HSmsq2iq4bQ
https://www.youtube.com/watch?v=g-OF7KGyDis
https://www.youtube.com/watch?v=OdRL6hawN4M
