Thanks Linda. Happy to answer all those questions. I don't know what part of England you live in but aerial is pretty big there too so you might want to run a search for aerial dance or trapeze or silks or bungee to see if there's a dance studio in your area that teaches adults.
The TRX is hooked to a beam in the ceiling with a $3 weight bearing hook from the hardware store but most of the companies sell door attachments as well so you can attach it to your door. Outdoors you can attach it to anything from playground equipment to trees to poles.
If you have a tree in your backyard and sturdy rope you can get busy with my
Rope Climbing Exercises this week to get a feel for suspension training. It's very similar and if you can tie a foot hold then you can do suspended lunges too. Dominic's video at the top of the page is advanced and mine which is further down is for beginners/intermediates.
I actually don't work out to music much anymore. I just open a window or door and listen to the birds. I add the music in when I edit the video to shorten it. Sometimes I workout to movies but I try not to do that too much. I find that it interferes with my intensity.
There are so many ways to train. All you have to do is find a few things you really like and it will become a fun and healthy habit faster than you can imagine : )