Mozart was a {#blank#}1{#/blank#} (作曲家). He wrote classical music and operas. {#blank#}2{#/blank#}(他的) music is difficult to play and sing. Musicians and singers {#blank#}3{#/blank#}(训练) for a long time before they can play and sing Mozart's music, {#blank#}4{#/blank#}(但是) pop and rock musicians don't train much. Their most popular instrument is the guitar. In America, black musicians often sing {#blank#}5{#/blank#}(悲伤的) songs. They call this music the blues. Another {#blank#}6{#/blank#}(种类) of modern music {#blank#}7{#/blank#}(来自) America is jazz. This music often {#blank#}8{#/blank#}(使用) trumpets and other loud instruments. We use{#blank#}9{#/blank#}(钢琴)and violin to play {#blank#}10{#/blank#}(所有的) types of music.

—It {#blank#}1{#/blank#} (lie) behind the door.