Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Vivaldi at his best, played excellently

The concerto V558 has long been one I fondly remember from many years ago, but did not know the name. Amazon permitted me to sample materials and find out which one it was and to check out how it was played (some versions are played too rapidly, or not with the richness this work deserves). A long-standing wish has been fulfilled.