Translation of musikalisch

I would like to know if Jack is interested to join us as well. Shared learning is called Tandem. I'm coming in 2 days to Spain. I will pay for the study costs of my daughter, and I assume all other costs as well.
I've never been to Switzerland, but I've been thinking about visiting it for a long time. Until now I was only in France and Holland. I should take the time and travel and visit new places.
Actually, the East Coast is six hours behind CET, that means that I would speak on midnight at your 6 o'clock dinner. We should try written exercise first because of the huge time difference.