Hi! I will be very glad if adult and young musicians will help me about my problems.
I didnot take a music course in school and dont have great ideas about pucker embou.(my embou choice cause my sound on second register is very thin using other embouchure.). If I will compare myself to other medium body built Asians, my lips are not very thin but my mouth is not wide if you will measure horizontally. The truth is I cant say if it is really puckering. I just extend a little my lips forward, the tendency of muscles to the center, and put an opening between the lips.
1. Where should I place my tounge? Is it required that the tounge be placed between the teeth when blowing.? or just at the middle of the mouth near the teeth?
2. Is it right to use yamaha 11B4 for puckering?
3. please explain to me how the lips will work when ascending on the scale,etc.

4. I cant produce the note G on top of the staff. I suspect the measurement of the throat of my 11B4 yamaha mouthpiece is narrower thats why when striking G it seems the sound cant pass inside the throat and out of the backbore of the mpc.
I hope you will reply to me. thanks

1. Tongue - your tongue should be out of the way. below the tooth line until you are going to use it.
2. Mouthpiece? I don't know.I would think it does not matter.
3. To go higher you want to make your air go faster. The hole in your lips will get a little bit smaller, but faster air is what makes it happen.
4. G on top of the staff. Continue to practice. The narrow mouthpiece will not stop you from going high. You are probably trying too hard. Play chromatic scales every day and try to increase the range one note each week.

Other than that, find a good trumpet teacher and take a few lessons.