I'd suggest 8notes.com, but guessing from their flute selection, you won't find much. As to cookies, I'd rather have Irish folk music for flute.

As for advice: be sure to get your breathing technique right. If learned incorrectly, this is the hardest thing to correct(think 2 years of disciplined training). I got by with an incorrect technique for the first 8 years of playing, and then lip stamina just couldn't get better because I had to form all higher notes purely on my lips, without breathing support.

For training your breathing, the best exercise I found was to play the basic overtones(C,E,G) with as little pressure on your lips as possible. Let the trumpet barely touch your lips and you'll be forced to:
1. Strengthen your embouchure muscles, which will give you a more stable sound.
2. Use your diaphragm to produce the air pressure/flow needed.

This way of playing isn't meant to be used in normal play, since it's quite demanding, but the main goal is to learn to stop blocking the air flow with your throat. Here's a breathing exercise you could do as well that might just help: http://brassmusician.com/breathing-exercises-the-held-breath-and-fear-of-the-first-note-part-1/

J-Gamer: trumpet buf, maybe trumpet buff ? I was meaning something like 'post a video of a short playing session of yours'.
Thanks for the link.

Edgar: Even if it's photos, I would be pleased if you give me some. I may rewrite them to a nice paper sheet.

A pity. I will post one soon, even if I'm not proud of it.
I hope some will join and post too.

IIRC Bruce is playing piano fine, and Johan Halmèn is playing music too. I was hoping that Tobias Dammer would pass down here cause he already posted some tuba video of him and may have some good advice.

Thanks Michael, I'm trying it.

Edit: I already found a sheet or two to work, kewl ! edit2: I'll have to adapt the sheet cause' it ain't trumpet.

Ooooooooooooh yeaaaah !!

I must make a video too :-)

I'm interested in good music. Scripting them a bit is not a problem so please, bring jazz and what is bossa nova please :-)

It's old. Very old. Haven't checked with the manufacturer yet. "Gebr. Alexander" from Mainz. It's a 4 valve Eb tuba.

Yes, definitely steampunk! Years ago I did a music video based on a silly facebook game, where I played this very same tuba:

http://www.youtube.com/watch?v=6nruE7RWxVI&t=200

I think a 4th valve is most common in Eb tubas. The tuba is not that big, but the 4th valve (which drops the tone a 4th), enables you to play all notes from the "base" tone Eb all the way down to the next Eb, one octave below. And technically even one more octave after that. Maybe Tobias can explain more.