I help you with trumpet valves (for Bb). You can also play multiple notes. I will use numbers to say what valves you press and the numbers that are missing are the ones that are not pressed.

C is 1 (First valve pressed) C# is 2 (Middle valve pressed) D is 0 (No valves pressed down) D# is 123 (All valves pressed down) E is 13 (First and last valves pressed down) F is 23 (Middle and Last valves pressed down) F# is 12 (First and Middle valves pressed down) G is 1 (First valve pressed down, More air) G# is 2 (Middle valve pressed down, More air) A is 0 (No valves pressed down) A# is 12 (First and middle valves pressed, More air) B is 1 (First valve pressed down, more air)

You can also tell me multiple notes and I will say the numbers for the multiple notes you provide.

If you want it concert pitch but it is a Bb trumpet, here is the C piano scale.

C is 123 (All valves pressed) C# is 13 (First and Last valves pressed) D is 23 (Middle and Last valve pressed down) D# is 12 (First and Middle valve pressed down) E is 1 (First valve pressed down) F is 2 (Middle valve pressed down) F# is 0 (No valves pressed down) G is 123 (All valves pressed down, More air) G# is 13 (First and last valves pressed down, More air) A is 23 (Middle and last valves pressed down, more air) A# is 12 (First and middle valves pressed down, more air) B is 1 (First valve pressed down, more air)