hrmm as for First question I’ve held my breath for 3:05 thats my personal record
( no joking… I’ve been timed )
I just have big lungs
As for hissing sound I have no clue I have to do it for voice lessons all the time so I could see right now… :: starts counting :: 47 seconds… ( I need to work on that )
Uhh holding a sheet of paper to the wall… goodness where do people come up with this stuff 
4 seconds
I’ve played my trombone for 20 measures before… 4/4 sustained slow tempo… tho for 18 of the measures it was just an F and played somewhat quiet and I got a big breath b4 it
Dan
