Did you mean "This is my song: I will sing it wherever I may be?" Another way to say this that fits the same meter is "This is my song: I will sing it wherever I am." That says that you'll sing it in any location. To make it stronger, completely unconditional, you could write "This is my song. I will sing it no matter what." That means you will sing it wherever you may be, whatever else is happening, whoever else is there...

Doesn't make sense to me. Could you expound (explain further)?

Hah! Now I see the "friend" request. I am going to say "no" because 1. my Portuguese is terrible 2. I'm learning French, Russian and Chinese just now, and I just don't think I have the brainpower to go back to Portuguese too 3. I think that you would be better with someone English that is learning Portuguese. Beijos - see, I don't even now if I have spelt that right!

Huh, I just found your post to me below. I'm blushing. Thank you, Robson!

Yes!! Absolutely understandable! Dan Smith was on the right track too, I must say.