Gurgley...that works for a description. The D box does seem cleaner etc. Of course, I like irish tunes which are most commonly in D or A anyway. At times, I will close the low reeds on my C box. In fact, I think the old players messed with the reed combinations more than we realize. Listen to the "Creole Belles" and you will hear several different accordion "sounds", from low and growling to clear and high. If you have a fairly wet tuned box, closing one of the middle reeds works well also.