teaching college students at peabody conservatory. >> when you first start doing it how do you do it?this is the tricky aspect of conducting. you actually don't have an instrument. it's like playing air violin. it's all imagined. in order to practice as a conductor, you really need 40 people i would say to come over every day. >> yeah but i think it's too complicated. >> mike repper came to the peabody from california specifically to learn from alsop. >> what makes merrin a good conductor? >> it's so clear what she wants. >> she's inspirational. >> she is inspirational. she's my all time mentor so -- >> merrin gave me a mini lesson. i will admit it was a little nerve racking. >> up beat, 1-2-3, ah, you're a natural. don't give up your day job. >> i will not. >> she still battles criticism from some meaf mal male conductors who don't see a place for a female with a baton. >> does that glass ceiling still exists? >> oh sure, it definitely exists. i looked around and thought oh there will be more women within ten years. 20 years, not much company, if i'm not changing this who is going to

. >> alsop is a conductor's conductor, also teaching college students at johns hopkins peabody conservatorydoing it how do you do it? >> this is tricky aspect of conducting. you don't actually have an instrument. it's like playing air violin it's all imagined. you need 40 people to come over everyday. >> mike repper came to the peabody from california specifically to learn from alsop. >> what is specific about marin? >> she's inspirational. she's my all time mentor so -- >> marin alsop gave me a minutey lesson. i have to admit it was a little nerve racking. >> beings put the finger up? >> don't give up your day job. >> i will not, i will not. >> she still battles criticism from some fellow conductors who simply don't see a place for a woman with a baton. >> you were the first female to lead an orchestra like this. >> well, somebody had to be the first i suppose. >> does the glass ceiling still exist? >> oh sure, it exists. i looked arnld, thought there would be more women after ten years. not much company, 20 years, not much company. if i don't change the horizon, who's going to. >> she is