I played two for years and I still have my D. These Castagnari accordions are very good and also build with craftmansship.I also let them retuned to a Cajun - tuning. I changed to a Junior Martin(C) and a Falcon(D)because I have the opportunity to buy them here in Europe. The sound of the LA-built accordions is different, because of the position of the reeds. That was discussed earlier here.
Evil Emil from Sweden plays on Castagnari with an internal mike .

Thinking REAL hard about that off, Jeff.