[Trombone-l] airy sound

[julie harnois]

Hi!I'm kind of depress actuallysince 2 weeks i'm so confused by this problem and it seems of nobody can help me around maybe you have suggestion..I'm in 1st year of masteri practice a lot (4-5hrs a day) since some years i had reach a great soundbut since 2 weeks its the worst time of my lifei sound like when i was in high schoolnot able to do anything (range flex..)with a lot of air in my sound and tired after one hourI ha change my mouthpiece a month ago...the one I had before was giving me a to dark sound so I change it to get something brigther, It had work really well for 2 weeks... (I was playing on a laskey m47 and i switch for a rath 5L)I had stared euphonium lessons 2 month ago at school...I don't know why its like that but i am in trouble rigth now...and the only point I get from people around me is ...try to play less or try to play more..I had change nothing in my warm up technique or whateverhow coul this happens..thanks for your help!Julie