This should make you feel good. My friend Trish Huffman sent me the link. Swing Girls was a popular movie a few years ago. The girls are actually playing the instruments (though many had to learn them just for the movie.) They really could play and even went on a Japan-wide tour playing live to promote the movie.

This is from a TV show (no dubbing). And as you can see it sounds almost as good as the movie production (just in case you were wondering if they can really play - yes they can...and did). The group was put together for the movie, but I have heard actual high-school bands that sound even better. In Japan, students typically do only one "club activity" like this. So they will play in the jazz band (or practice baseball, etc. - whatever they make a full commitment to) all year long and they get very very good! This teaches the principle of committing to an endeavor and the doing your best at it to achieve perfection (or as close as you can get to it.