합창 https://youtu.be/c1D5GxWdU3w?si=E49xbQIQD1n7uchT
소프라노 https://youtu.be/ucMDaDr-MVc?si=z_tRY2OzB0HmvKCv
알토 https://youtu.be/f5-lg-lqvuE?si=AqwbNlD1nQgF8cRX
테너 https://youtu.be/txTlKTfcYyk?si=h1as9an-h3VtNzFv
베이스 https://youtu.be/c1XFJ_T6jDs?si=0yY6_vXVqHgKkFrZ