The klapa music is a form of a cappella singing. 卡拉帕的音乐是一种歌唱的形式。
I knew Sean through a cappella singing society called Barbershop. 我和Sean的相识是通过一个叫做Barbershop的无伴奏合唱协会。
Kevin: A cappella is kind of music that solo or group singing without instrumental sound, all vocal performance. Acappella是一种演唱方式,个人或者组合不需要乐器伴奏,单纯用人声演唱。