[musictlk] Nonvisual Alternatives for Mirror Checks?

[Dani Pagador]

Hi, Everyone.
I'm Dani, and I'm new to the list.

I'm taking an online vocal class, and one of the ways students check
themselves is by using a mirror e.g, to make sure the chest isn't
collapsing at the end of a phrase.

Mirror check is out for me *smile*. How do you vocalists on list make
sure you're maintaining an open rib cage without looking in the mirror
to double-check yourself?

Thanks,
Dani