Does anyone know of a good music studio that I can Download on my comeputer?

Audacity is a free open source audio editor and mixer. It's fairly basic though, if you want to look through a few freeware ones try typing "open source DAW" into google (DAW is Digital Audio Workstation) and see what comes up. OR try "open source audio workstation". All the best ones are paid for applications like Steinberg Cubase and Ableton Live although you can get free trials of them to see what they're about. One thing is clear, they have a very steep learning curve and it will take time to learn let alone just setting it up.