Dear Nathaniel,
Thank you and Sabine for your visit. After you had left, various ideas occurred to me. 

If you want more remunerative work, you might consider the following:
a) estimate the number of Internet trumpet students optimal for you.
b) publicizing you availability:
b1) with an Internet web site. (If you accepted my help, it would cost you nothing.
b2) targeted e-mailing. (I don't know where you could obtain lists of e-mail addresses.)
b3) targeted advertising on Youtube and Google.

These are just random thoughts. No need for you to take them seriously or to reply. I hope you continue enjoying the house.
Love, Jochen