Q: Music from the Cloud

when I was younger i used a bunch of different apple ID's (which was really dumb) and I'm trying to get that music onto my computer. I downloaded the stuff I needed from the first apple ID and that worked fine. But when I tried with the second one it gave me the usual warning of 90 days you can't download something from a different ID. I'm just wondering if I download from the second ID, will the songs from the first ID disappear after I had already downloaded them from my library?

Thanks!