Instruct: Classify Amazon reviews into positive or negative sentiment
Query: XRCD version

Meticulous transfer process from master tapes. If you plan to get a CD version of Tchaikovsky's violin concerto, I recommend this XRCD version. The sound quality and the playing blew me away. Heifetz plays it with intense fire and his tempo is fast but seems so natural that I can't listen to the slower tempos found on every other recording I've heard.According to Wikipedia, he plays on a violin with a silver wound gut g-string, 2 gut middle strings, and a steel top string.