Big feelings

Our littles are starting the phase of big feelings and they can have a hard time processing them. My girl struggles the most when she can't have something. She is good about handing it to me when I ask for it but if she can't have it back she will start to cry and gets upset. It sounds silly but I started singing to her. (ABC's is one that I sing.) She listens to me sing, calms down immediately and even signals for "more". We aren't really dealing with feelings as she is still so young, so I distract instead. When she's older I plan to work on deep slow breaths with her.

What have your experiences been with the early stages of "the terrible twos" and how do you handle?