Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Top of the heap recording of complete Beethoven sonatas

When American Record Guide did an overview of Beethoven piano sonata recordings, it singled out two complete sets: Wilhelm Kempff and Claude Frank. For my taste, Frank's is the set to have. He's the rare artist who seems equally attuned to all Beethoven's moods, whether it's the impetuous fireworks of the "Appassionata" or the genial "Adagio grazioso" from Op. 31, No. 1.It's sometimes whispered among pianists that Frank is a tad sloppy, but don't let that put you off this stellar recording. Here, Frank is every bit as finger perfect as more celebrated names, and he adds a flair and obvious love for the music that shines throughout the entire set.The sound is good late 1960's vintage, and the price is low. You'll find no better bargain.