Incidentally, I don’t mean that in a snarky way. It’s a simple statement of fact. Music publishing isn’t all that profitable even for the big houses these days, and I wouldn’t recommend setting up even as a piano arranger if income is mostly what you’re looking for.
As for the copyright issues, if you’re in Indonesia (I think that’s what you said; apologies if I’ve got that wrong) or anywhere in the Pacific Basin/Asia, American copyright law doesn’t apply.
No problem Barbara, but you’re correct that I live in Indonesia. There are some professions involving the harp. You can be a harp performer, harp teacher,harp seller, harp technician, etc. For me I think become the one who provide music is quite interesting. Since I already have a job I thought that arranging music could be a profitable weekend project after practicing on my harp