Switching systems

Switching systems

Having played DG and ADG melodeons for many years with a little bit of BC on the side, I’ve just acquired a C#D box. I’ve a great number of tunes in my head and I managed to work out the Sally Gardens after about 10 minutes but I can see that it’s going to take me a while to get the same sort of fluency I have on the DG box. Can anyone give me any tips on suitable tunes to start on?

Is there a website that will tell me what bass patterns the new instrument has (it’s a Hohner Primaton IV) and what recommended patterns are if I should have it re-tuned?.

Thank you.