I do military funeral details, and we commonly use the electric bugle.
I am a alumni member of a world champion Drum and Bugle Corps which associates more than capable of playing taps and certainly on par with anything performed at Arlington.
So I reached out to my Alumni association for trumpet players to join me at these funerals if they can.
What ended up happening was a fellow alumni of my drum corps responded back, and he's a SFC of a Band unit at the exact same duty station I drill out of.
So I put him in contact with the Funeral Coordinator.
Both his mil mail POC and the Funeral Coordinator's mil POC has them both roll up to the same chain of command.
However, it wasn't any military communication channel that let the two know about each other. It was a coincidental youth band we both belonged to in our teens.
Sigh......................