OK, I got my new trumpet Saturday night. I drove to Dallas to see my mother, who lives with my sister and her husband. My sistetr and mother had driven to New York City to see my brother and drove back, being gone two weeks in all. Anyway, she picked it up for me while she was there. I don't know the brand. It says "Brasswind" on the bell, and that's about it, except that the mouthpiece is a Vincent-Bach 3C. I googled, but didn't find anything except an on-line music store. Sunday and Monday I was gonna practice, but my great-niece took it away from me. I printed her out a fingering chart and some melodies, and she learned to play them. "Twinkle, Twinkle, Little Star" and things like that. She's first flutist (don't say flautist, she hates that) in her middle school band. Tuesday I was on the road back to Tuscaloosa, so yesterday was the first chance I had to practice, which I did for about an hour and a half. The same today, and since I'm on vacation, I'll practice again this afternoon. OK, I've got some questions. First, my valves tend to stick unexpectedly, especially the second valve. I've oiled them twice, and for good measure applied slide grease to the slides. Any ideas about my next step? Second, although I have been practicing long tones, I cannot seem to maintain the note once I get it. It must be something wrong with my embochure, but I don't know how to correct it. Any help would be appreciated.