Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: This Ain't Your Father's Bluegrass. Heck, It Ain't Bluegrass

Compositionally mature, this project is the fusion (pun intended) of acoustic mandolin and sophisticated electric guitar. Backed by electric bass and drums, Flinner struts his stuff and evokes tight ensemble comradery in this edgy environment. Bluegrass it ain't. Tasty... it is.Their arrangement of the tradtional jazz standard "Caravan" is deliciously insane. This one redefines what a mandolin can do.In ANY environment.