However Davis was one of many jazz musicians growing dissatisfied with bebop seeing its increasingly complex chord changes as hindering creativity This is a debatable point bebop was ten years before KoB anyway Are you referring to the music that grew out of bebop And how specifically I think this sentence should be rephrased  However Davis desired to bring a more lyrical quality to the forefront in his music a quality which was not emphasized as much in bebop and postbop jazz   This desire is verifiable in numerous sources  off the top of my head John Szweds book and Miles autobiography