Make a music track with no physical instrument?

I'll put my question at the top and the story at the bottom. Thank you everyone in advance whoever reads/responds to this.

I want to know if you can make a music track with Adobe Audition without having any physical instrument in your hands. I wouldn't mind adding in the 'sounds' of real instruments without having them, but I'm predominantly going to go for more 'electronic' type sounds and beats. In the future, I might end up with a Synthesizer so I need to know if Audition will 'connect' to that just fine and take the 'inputs'(?).

So the story for context.

I'm doing a diploma in science. In doing this, I learnt a little about frequencies, a little about music etc. I realised that I wouldn't mind playing an instrument between studying as a creative break from studying without too much of a breakaway 'from' it as I've heard playing music is great for your mind. I also genuinely have an interest in playing music, it's not just for the benefit. I liked the sounds of flutes and a couple of other instruments. But I need them to be convenient to grab and just as easy to put down. 

While studying I had some random playlists going, eventually these playlists were refined to electronic ones as I tend to focus more with those. Grimes came on a couple of times, she sounds cool. Then I noticed how much more focused I was with Synthwave type music. I also realised how much I really like that style. 

I thought about the Stranger Things track also which is my ringtone because the sound is so damn cool.

I realised maybe I should have some sort of digital piano/dj like thing where I push buttons and it makes cool sounds. Sounds good in concept to me, as this way I could just swivel my chair, play a beat for 20 minutes or so, then swivel back into study. I think it would be a lot of fun making funky sounds, without intention of them being any good just as a creative distraction that isn't one that means just watching a show or doing something pointless.

However, I woulnd't want something bad quality. Supposedly I'm looking at around $800. I'm happy to save up for that. I would at least like to use my time while saving to learn how to use what I currently have. And currently all I have is Adobe Creative Suit. I'm sure, since I've used Audition for other things in the past and it seems pretty powerful, there's a way of doing it. I just need to be pointed in the right direction of what I should be looking into to get started with making some cool electronic sounds/tracks/beats without having any physical instrument. But I also need to know if Audition will handle me connecting a Synth to it if I do finally get one.

Thank you again. 🙂