A double-sharped note is just raised two half-steps from the original note. So if you have A##, the first sharp would go to A#, which is the same as B-flat, and the second sharp would be the A##, which is the same as B-natural.
E-sharp is the same as F-natural.
High G uses an open fingering.
It would be the same an F sharp. So just the middle valve.
All open, or 1st and 3rd for the G below the staff.
You play a G below the staff on the trumpet with the fingering 1 and 3, loosen the jaw if you are having trouble reaching it.
On a standard Bb trumpet, the fingering for A# is 1.
On a standard Bb trumpet the fingering for a high G is open. An alternate fingering is 13.
On a standard Bb trumpet, the fingering for low G is 13 and the fingering for higher Gs is open.
E-sharp is the same as F-natural.
High G uses an open fingering.
To play a sharp B flat on a trumpet, you would use the first valve and the third valve together.
It would be the same an F sharp. So just the middle valve.
All open, or 1st and 3rd for the G below the staff.
no valves down middle tightness on the lips
You play a G below the staff on the trumpet with the fingering 1 and 3, loosen the jaw if you are having trouble reaching it.
The correct fingering for playing a G sharp on the piano is to use your thumb (1) for the G key and your middle finger (3) for the black key to the right of it.
A concert F# is a G#/Ab on the trumpet, played by pushing the 2nd and 3rd valves.