I have not had this experience in therapy but my therapist left a message on my phone one time and I have listened to it when I was sickened with emotions. I heard about therapist making voice recordings and I thought it was odd and I didn't see how it could work but it does. And my message wasn't even on a personal level.

I have not told her that I listen to it and I don't think I will. I'm not there yet.

I hope it helps and you find comfort in her voice as well as her words.