I invested in a tablet and downloaded a couple of apps just to get a feel for all this, and I know I'm going to sound like an idiot, but after downloading Touch DAW and other similar apps, how do I go about getting sounds onto there? Do I need to buy some physical tools or can I get sample packs offline? This is really confusing but I'm going to keep researching and asking questions until I figure it out.
I'm going to wrap some of what @user37496 and @ToddWilcox mentioned in comments into an answer, just to ensure we keep it.
Firstly Touch DAW is a controller for a Digital Audio Workstation (DAW) so it doesn't do anything to do with audio itself. It needs a DAW.
Once you have a DAW you need some audio, whether that be wav or midi with samples or any other audio file type your DAW can cope with.
- You can get midi samples for all instruments easily online. Free ones are available, but often the collections you pay for are better (higher resolution, more accurate sound etc)
- If you have an electric instrument you can play into your DAW and let it record your music
- A microphone allows you to sing or record acoustic instruments into it
You may also, depending on the hardware and applications you are running, and what you want to do, require an external mixer or audio interface.
Walkband and Soundcamp are two that have virtual instruments you can play using the touchscreen.I use Chordbot to play around with chord progressions. You set up the parameters of the progression and it plays it in a loop. If you want a full recording type of software- like a DAW- you can get a much more sophisticated one for a PC than a tablet. All the DAWs I have seen for tablets are pretty simplistic. However, if you are just exploring PC based music, simple may be better.