I have a piece of forgotten/unknown media. Seeking advice

This is my first post here, so hopefully I'm doing this right.

Backstory: I have an mp3 of a song that was played live on the radio back in 1999. During this time, the band Lillian Axe was out announcing their upcoming album Fields of Yesterday. The band's vocalist did an interview on on KEGL "The Eagle" 97.1 in Dallas and also performed an acoustic medley of two of their songs from previous albums Ghost of Winter and True Believer. At the end of the interview, the DJ said he would make the song available for download on the station's website by the next day and sure enough, there it was. I happily downloaded it on my 56k dial-up connection, listened to it a few times, and put it away in my MP3 folder. Somehow, 10 years later in 2009 I came across that MP3 again in a backup of a backup of a backup. I don't know how it survived, but there it was. I decided to give it a quick Google to see if I could find out any more info about that day since it had been a decade at that point. I couldn't remember much about it. To my surprise, I could find absolutely nothing about this interview or song ever existing. Somewhere between 1999 and 2009 the station had changed format and was no longer a hard rock station and played Latino music now. The old website was replaced with Sunny FM or whatever it was called. Any evidence of the old rock station was gone. At the time, I didn't even think about archive.org. Anyway, I listened to that song now and again and it became a favorite of my ex-gf. But as time went on, it again got put away somewhere and I just forgot all about it until recently. For no reason I started humming this song. It took me a minute to even remember what it was, but when I did remember I was back on the hunt again. I managed to find it in sitting in my Gmail account attached to the email from back when I sent it to my ex-gf. One of the only good things to come out of that relationship. Anyway, I again have this song in my possession and have been Googling and scouring dozens of archive.org snapshots from 99 and 2000 trying to find mention of this MP3 download, but I could not find it. It may have even been on the DJ's personal page, I don't remember. It was 23 years ago, after all. But tl;dr, I cannot find a single mention of this interview or this recording on the entire internet. Well, except one mention. My own mention. From 2009. I had forgotten this, but apparently I created a torrent and uploaded this trying to get it preserved by putting it into other people's hands. But besides that single dead torrent page that I created 13 years ago, there's nothing.

So with that said, what's the best way for me to preserve this MP3? Uploading it to YouTube sounds like one option, but from the years that I've been watching lost media YouTube channels I know that sometimes lost media sits in a YouTube video with 0 views for years and years until it's rediscovered almost by pure chance. It isn't as if this is a popular band to begin with, so I'm looking for the best way that this can be preserved and still discoverable. As far as I know, I'm the only person who still has this MP3 and may be the only one who has had it for 15 or more years.

EDIT: I've uploaded it to archive.org: archive.org/details/lillianaxe_ghostofwinter_truebeliever