Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Piano Concertos, The Worst Possible Performances!

I love Mozart and adore his piano concertos. No. 23 is widely regarded as possibly his best piano concerto, and the Elvira Madigan has a very beautiful slow movement. These performances, however, are just terrible. The soloist is dull, the orchestra doesn't sound good, and there's no emotion here. Moreover, the piano and orchestra seem to be playing at different paces throughout. Don't let such a poor performance turn you off from such beautiful music. If you want the real Mozart piano concertos, consider Ashkenazy and the Philharmonia Orchestra.