Congratulations! On deciding to start such a wonderful journey. Not trying to bullshit you here at all, it is very cool that you are starting something new or perhaps restarting something you did.
"Take a deep breath" is an often misused vocal direction to imply that in order to sing for a longer phrase you just need to have more air in the lungs.
Singers are tricky to buy for. You no longer need CD's, concerts are out, when will they get to perform live again? Who knows. Here are my Top Christmas Gift Ideas for the singers close to you.
Firstly, I am almost certain that you have heard of this elusive membrane. Secondly, I am sure that you have checked out a couple of "How to sing" YouTube videos where they talked all about it. How wonderful that you are here, btw so that we can really dive into the nitty gritty of what the hell they are banging on about.