I think you've posted this more or less publicly. I haven't looked for private messages yet. I'm still trying to work out groups.

I think I've set up a group called "Music, My Life". It has a nickname of mmlifers, which you can use to post to it (at least, I could) by adding '!+mmlifers (without the quote marks or the '+'. It looks like this place is more like twitter etc. than I thought because my post also appears on my own timeline.

I can't find the group by looking under Music,My Life, but could find posts under mmlifers