Harry,
Brilliant playing as ever!!
Mark,
I'll have a chance to take a look later on so I'l see whether I can add anything.
In the meantime, have a look at Phil's site where he has some examples of the original Technics recordings. He doesn't have the Trumpet soloist mp3 up but the first recording is probably the same player and instrument (you can find out by downloading Phil's spreadsheet).
http://www.allrightmusic.co.uk/Examples.htmlThis is also worth a watch.
https://www.youtube.com/watch?v=tIM40ntxh1cSend us a recording or video link or description to explain what you're wanting because the trumpet is very versatile but the low range is limited. You're wanting vibrato in a low register? For what style of music?
Cheers,
Mike