7874306|Goldberg Variations, BWV 988 - Var 3: Canon at the Unison （哥德堡变奏曲，作品988 - 变奏3. 卡农，三声部）|250953|John Metz|722748|Bach: Goldberg Variations, BWV 988|1106234|69|1|1|0|2765114|1106234|7|0|0|0|2094400|1690966|0|001cHVml1FkQ9R|000ZFtXh20Cr7u|000UG9nU2ZjYRf