Instruct: Classify Amazon reviews into positive or negative sentiment
Query: an extraordinary progresive rock

middle of the 70`the progressive rock was at its top. now with esperanto with only two records , both are must to have. last tango is a 70% wonderful record. Rithm, pace, cello, violin, bass, with electronics, women voices with too much power and delicate soft passages. i have heard this record 100 times, since 1976 and each time is a pleasure.