I'm brand new to Mac's. Very good with PC's but don't know my way around these machines very well. Bought a brand new pro today and started to do migration assistant at startup to transfer my itunes music and films from my windows pc to my mac over my network. I left it for 15 minutes and the bar didn't even move (transferring like 60gb) so I thought screw this and cancelled it on my pc (can't cancel on mac) and that canceled it on my mac too. I started over to just do my music as that's all that I really needed (10GB). Again it took too long so I canceled and thought I'd do it later and continued to set up my new mac. I then went into about this mac and under storage it says I have a load of files (below) but I can't find anything in Finder so where are they and are they some of my files that transferred over before I cancelled or are they system files (seems excessive to me to have over a gig of audio)
Also when I go into finder and show all my files all I can see is this
so where are all them files?
Not tech savvy with Mac at all btw but I will be soon as I learn fast and am generally very good with computers. I think I may be being stupid and they are all just system files but it seems a lot to me to have 1gb of audio files just for notifications and such and couldn't find any videos. It's probably me being paranoid because I canceled migration assistant

Also when I go into finder and show all my files all I can see is this

so where are all them files?
Not tech savvy with Mac at all btw but I will be soon as I learn fast and am generally very good with computers. I think I may be being stupid and they are all just system files but it seems a lot to me to have 1gb of audio files just for notifications and such and couldn't find any videos. It's probably me being paranoid because I canceled migration assistant