Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The perfect guitar sound

Wes Montgomery always had an easily recognizable sound. His use of the thumb instead of a pick generated a distinctive attack. In some recordings his sound may have been a little more overdriven than he wished: I'm less sentimental about vintage amps than some.But in this album, it's just right. The acoustic sound of his big archtop guitar comes through, with just a hint of crunch from his amplifier. "I Wish I Knew" exemplifies this sound with one of the best ballads he ever recorded. Although (as another reviewer indicated) the style of mixing is a little dated, the band plays well. You can easily hear past any inadequacies in the mix.Overall, the album is a nice mix of ballad and up-tempo. It's not as market-focused as some of his later recordings, so you get a good taste of what this sensitive player could do.