IMO the best Cowboy Junkies CD is "The Trinity Sessions" for both the music and the recording quality. The session was minimally miked in an old church with very little editing, I think. You can hear things get kicked by accident in the recording, people breathing, the ventilation system in the background, and a very low frequency noise that might be a train or underground subway rumble. The band seemed to have a synergy that I did not find in later recordings. After first hearing that CD, I rushed out to buy others, but never heard the magic I found in "The Trinity Sessions." But that's just my opinion.
