Ok I am totally fresh to the trumpet world, as having/playing a trumpet for >2 weeks. I have the horn from my school to learn over the summer 2nd and 3rd valve work fine and have no problems. My first valve sounds funny when I press down, I can hear the spring inside the valve scrunching down and occasionally it clicks. The pearl keys on top twist off on 3rd and 2nd valve but not first, while taking off the pearls on the valves I noticed that my 1st valve didn't come off, but rather the top half of the valve unscrewed off the bottom. As if this valve didn't have enough problems it also doesn't stay put like the rest of the valves, this valve will twist and make the holes in the valve move away so i can't get air through the instrument. So if anyone could be of help it would be fantastic..l really have to learn to in a relatively short time period.
If anyone could help it would be amazing