Chances are good that when you oiled your valves, you didn't align the pistons properly. When you reinsert the piston into the valve, twist it clockwise (by twisting the button) until it "clicks" into place. That should align the valve properly, and you should be able to play your Trumpet again.
Another possibility is that you put the pistons in the wrong valves. The pistons and valves are each marked with a number (1,2,3). Piston 1 goes in Valve 1, and so on.
The reason is because the sound is created by different means and materials. On a guitar, it's a vibrating string. With trumpet, the player's lips buzz into a mouthpiece and cause a tone to pass through the instrument.
On the internet...or go to a trumpet professional.
The players lips vibrate, which creates the sound you hear. However, the sound vibrates, or resonates within the trumpet so it doesn't just sound like someone making farting noises with their trumpet.
Cork grease is not needed on a trumpet, as there is no cork to grease!
First of all, for those who are very new to the trumpet, only use the oil you can buy in a music store. Never try to use a substitute that you just have lying around the house. Things like vegetable oil and motor oil do not go in a trumpet. Find the point at which the moving part of the valve (the part you push down) meets the body of the trumpet. You should be able to unscrew this part. Lift each valve out one at a time so you don't put them back in the wrong place. Squeeze some oil out of the bottle onto the large part (the part that goes inside the trumpet). You can also squeeze some inside the opening in which the valve would go, if necessary. Replace the valve and screw the top back on. When you replace the valve, you need to be sure that it goes in with the same orientation as when you removed it. Many modern trumpets come with a nice feature which will allow you to twist the valve until it clicks into place. Blow air through the trumpet and move the valve up and down to make sure air always moves through the trumpet. If air movement halts, it means you either put a valve in the wrong opening, or the valve was replaced incorrectly.
Most likely a broken seal.
It's kinda like a fire if there is nothing to burn the fire wont go there, so with electrons if there is nothing to travel in to (like a switch, a light bulb, a buzzer ect.) the electrons wont go there because they can't just travel through air like fire can't just travel through air.
without air the tyres wont go round :/
The reason is because the sound is created by different means and materials. On a guitar, it's a vibrating string. With trumpet, the player's lips buzz into a mouthpiece and cause a tone to pass through the instrument.
opaque
On the internet...or go to a trumpet professional.
check the belts
yes a human can go through a ghost no matter what u wont feel anything
Air.
Push it though....
even if you use the walk through walls it wont work so dont bother and if you go to canalave city and go to the hotel with walk through it wont work either:(Sorry !
The best trumpet is a Bach, i recommend a B flat trumpet made by Yamaha if your not a professional. always go with a B flat trumpet though.