I created this thread to see what others opinions and expierences have been. I have found that as I mature as a musician, my ear also mature's in understanding and appreciating deeper harmonic structures and textures. An example I always use is a simple one: Shine on You Crazy Diamond by Pink Floyd. I remember years back when I first heard that song, the motif chord sounded very dissonant to me. Now it sounds perfect. I've found that with many harmonies in many styles of music. What sounded dissonant to me back then, sounds perfectly in tune to me now. What are your thoughts and opinions?