Instruct: Classify a given Amazon review as either positive or negative.
Query: Crystal clear recording and my favorite opera disc

This performance is very involving; the period instruments have an unusually warm sound, but retain their clarity. The sopranos do not shriek excessively, as is the case with many larger-scale performances. I never liked opera until I heard performances like this; the singing is sweet, pure, enthusiastic. The sound quality is excellent; warm, detailed, somewhat dry--but it suits this performance perfectly.