Hey @josietrueblood
If you create a Discord account, you can join the communities you want to join.
A community on Discord is basically a chat channel for people with the same interest.
Since SteemIt doesn't have a back end, all the chatting is done in Discord.

I know you're into music, but I'm not really known with any music communities here on SteemIt. I do know there is a (Discord) community for classical music. You can join a Discord community by clicking an invitation link you often find at the bottom of the community members' posts.

Here's is - as an example - the Discord invitation link for the classical music community: https://discord.gg/ppVmmgt

Once you get one Discord, it will all become more clear.