Some of these are people who influence my approach, other things might be short videos I have put up to help explain differences of instruments I play, nothing is particularly "self-promo" I hope...
WYNTON MARSALIS
Legendary trumpeter and an incredible public speaker who can advocate for the arts like no-one else I have heard.
https://www.wyntonmarsalis.org/videos/speeches
HISTORIC BRASS SOCIETY
Interesting articles and general resources concerning historical brass instruments and their players.
https://www.historicbrass.org
CALLUM AU + LOUIS DOWDESWELL SHEET MUISC
This is a great resource to use to learn the latest jazz charts from two of the finest musicians. They sell sheet music and playalong options.
https://www.callumaumusic.com
Don't be fooled by short clips online of difficult music - playing in a gig live is totally different. In isolation, anyone can make it sound easy.
Here's something I find the hardest under pressure from Bach's B Minor Mass, very high!
Hearing someone play these kind of things in isolation online is one thing, but go hear a proper player doing it on a gig and they deserve real credit.
The harmonic series means we can't play a diatonic scale on the natural trumpet unless we play very high.
Fantini's solution in the 17th century was to lip the notes down / up to create some in-between notes. Not sure how useable they are in performance unless as passing notes.
"What do those holes on your trumpet do?"
They help to play certain notes better in tune with the other performers. Can of worms re temperament and just intonation etc. but essentially it makes many people's lives a little easier.
Altenburg describes the venting of a trumpet in 1785, but no original instruments exist - life is a bit of a compromise...