Now that I have your attention- please read the whole thing if you want to know how to play one.
I'm playing lead on the First Circle in two days. "The First Circle" - Bob Curnow L.A. Big Band - YouTube This arrangement exactly, including the A at the end.
I've been able to hit it, but not all the time, and not with good sound or volume. It's not easy, playing a sixteenth note run up to an E for 11 beats, then up to the A from there, triple forte all the while.
I thought it was just me, not having played trumpet for more than four years. I thought that maybe when I got the Allen Vizzuti book (last week), that I'd become alot better at my upper register.
A few weeks ago I read a page on the website of Eddie Lewis, about reducing body tension. I tried it, and miraculously I owned the trumpet that day. I started doing flow studies on a deep Bach 3, and was able to do them up to High G and back down, effortlessly. I have not felt that since, despite my returns to that exercise.
For this lead thing, I'd been playing my 3C and now a Warburton 4M (7* backbore).
I came back to that page again today, hoping to find that place again, to no success. I stumbled upon a thread from here about not using pressure. It asked me to take out the tuning slide, play, and then apply pressure. If the pitch raised, I was not using pressure. If the pitch didn't raise, then I was using pressure. I did this on a low note, whatever comes out of the leadpipe. I was fine by that test, the pitch raised sufficiently.
Then it occured to me that pressure would not occur very much on a low C. I went up higher, above high C, and tried it. It turned out that I was using lots of pressure up there, killing my endurance/volume/range.
I concentrated on using no pressure. A Double C came out the leadpipe!!!! Then I tried with the tuning slide in, and another Double C came out!!!!
Then I played a few more. They felt right, and sounded right. I did have a mute in unfortunately (in consideration for the family). But come on! We all know it was THE DOUBLE C BEING PLAYED CORRECTLY!!!
Please try this little test! You may find your Double C leaping out!