In a Silent Way
Miles Davis

...

It didn't swing, the solos weren't even a little bit heroic, and it had electric guitars... But though In a Silent Way wasn't exactly jazz, it certainly wasn't rock. It was the sound of Miles Davis and Teo Macero feeling their way down an unlit hall at three in the morning. It was the soundtrack to all the whispered conversations every creative artist has, all the time, with that doubting, taunting voice that lives in the back of your head, the one asking all the unanswerable questions.[10]

In a rave review of the album upon its release, Rolling Stone writer Lester Bangs described In a Silent Way as "the kind of album that gives you faith in the future of music. It is not rock and roll, but it's nothing stereotyped as jazz either. All at once, it owes almost as much to the techniques developed by rock improvisors in the last four years as to Davis' jazz background. It is part of a transcendental new music which flushes categories away and, while using musical devices from all styles and cultures, is defined mainly by its deep emotion and unaffected originality"

 Blender writer K. Leander Williams called it "a proto-ambient masterpiece".