1.首先,貝多芬是加長音樂（ extended music不確定是否這樣翻譯,應該是專業(yè)術語吧）的作曲家,所謂加長音樂就是由幾個樂章組合成的音樂.
2.proclaimed被宣布的,被公告的
proclaim
動詞（及物） ( proclaimed; proclaimed; proclaiming)
宣告;公布;聲明
They proclaimed that he was a traitor.他們宣稱他是叛徒.
They proclaimed him King.他們稱他為國王.
The Government proclaimed a state of emergency.政府宣布了緊急狀態(tài).
表明,顯示
There was a feather on the rock,proclaiming that a bird had been there.巖石上有一根羽毛,說明有鳥到過那兒.
贊揚,稱頌
symphony名詞 (pl.symphonies)
交響樂,交響曲
【美】交響樂團,交響樂隊
He conducts a symphony.他指揮一個交響樂團.
【口】交響音樂會
和聲,諧聲;(色彩等的)和諧,一致
In the fall the woods is a symphony in red,brown and yellow.在秋天,這些樹林呈現(xiàn)一片和諧的紅色,棕色和黃色.