I can’t tell you how much your studies and Quetscher’s sound samples are helping me with my technique. I have been amazed at the extent to which I am able to replicate many of the sound effects and also to play along improvisationally. Some things I’m consciously incorporating into my playing, but it goes way beyond that in its influence on how I play my melodicas. It has changed my “musicality” expectations for what is possible for me as a player. It also gives me a better understanding of the possibilities (and limitations) of different melodicas. Cost: nothing; Benefits: immeasurable.