A lot of times harshness, edginess, sourness or whatever can be attributed to the time of day and day of the week and weather, not to the CD per se. I listened to the Castle Communications Black Sabbath CD on the super system at 7 am on a Sunday while enjoying a sunny high pressure system. I certainly wouldn't have said it was a super disc if it had sounded harsh or edgy. The sound was definitely not harsh or edgy or sour. If you could hear what I heard with my ears.....
Greatest rhythm sections
The rhythm section in a jazz, blues or rock band provides the foundation and motive force for the entire ensemble. The truly great ones not only establish the band's sonic signature, they can generate new styles. Which rhythm sections do you think have been the most influential in their respective genres, and, or changed the way you listened to music? Please try to limit your selections to groups and not individual musicians as it the ensemble sound I'd like to get your comments on.