Welcome to the forum, pest. While Munich, Bavaria and Germany may be new to you, there is nothing (well, hardly anything) new under the sun. Take a look at your screen, especially at the top right where you see "Search:" in bold and red print. If you type, for example,
guitar shop (and) and hit the quick search you will find that guitar shops, strings and other musical instrument topics have already been covered in one way or other.
The Search function is your friend, practice, use it, find what you need. And if not, feel free to post your questions.