Hi , Im sarah and I want to use this programme to sing with friends and to play with vocal improvisation, but I can't seem to work out how it works.

Hi, I want to play with friends . For now struggling to see how this works. Where is the info please?

Hi, this is Pat. I can connect to jam groups but never see my name listed and don't think I am contributing. What am I missing?

this sounds a great idea. However, can't see how it works (like others). How do I connect with other musicians ?

Your own name wont show up in Chatwindow…

Vocal harmonics and Improvisation will be difficult, for jammr is for jamming in Intervals… see post in Forum for more Information.
When you keep strictly to bpm and bpi it can be possible to have more than 1 vocalist. Give it a try, but read forum post before to prevent problem and questions.
Join a jam for a while and listen…