求翻译：琵琶曲《狼牙山五壮士》是一首非常优秀的中国管弦乐作品，是由我国作曲家吕绍恩先生创作于上世纪60年代，它是一首以我国抗日战争时期的真实故事为题材而作的琵琶独奏曲，乐曲以独奏的形式描述了中华民族的五位抗日战士奉命前去狼牙山阻击日本侵略军时机机智勇敢、顽强奋战的英雄事迹，这首曲目采用了很多琵琶传统套曲的手法，也运用了现代的作曲法套路，整首曲目运用了多种转调手法，主要从曲式与多声部手法分析、转调与调式分析，演奏技法与特殊弦的使用来具体分析这首曲目。是什么意思？

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The pipa tune "the Langya Five Brave soldiers" are extremely outstanding Chinese orchestral music works, is creates by our country composer Mr. Lu Shaoen in on century 60's, it was one by our country Sino-Japanese War time real story the pipa solo which did for the theme, the music describes Chinese

Pipa song ya mountain five heroes in under is a first very excellent of China Orchestra works, is by in China composer Lv Shaoen Mr creation Yu Shang century 60 generation, it is a first to in China Sino-Japanese war period of real story for theme and for of pipa solo, music to solo of forms descrip

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