Maybe this has been proposed before but I thought of this idea over coffee this morning. If the forum has the ability to store one music file for all to access. Pick a song that has been known for glare perceived or recorded. Maybe an Eva Cassidy song. Everyone downloads this file and posts their listening impressions. We all have the same file but a myriad of DACS and systems. This will require honesty on everyone's part to describe what they hear with no bias. If this is a crazy idea tell me to go drink another cup of coffee.