I'm pretty sure that I'm a high baritone. I've been wanting to take singing lessons for awhile now actually.
I had like 3 or 4 free lessons on my music degree. It wasn't that embarrassing but I could never get a grip of the breathing exercise.
It was : Breathe in for 1 sec. Hold for 1 sec out for 1 sec hold for 1 sec.
Repeat - but add one second each time all the way up to 10 seconds.
I could never do it
All the " do do do, go go go , nay nay nay, mum mum mum " stuff up and down a scale was ok .