Downloaded music on iPhone

Bit of a weird one. I’ve had some downloaded songs on my iPhone music app, that my ex downloaded for me off of websites. He’s in IT, so I trusted him to not get me anything with viruses.

But now I’m paranoid after listening to one of those songs..

Is there any chance any would have had viruses, and would I have known? It’s been 5 years since we broke up, and I’ve only used Spotify since then.

But today I went on the music app to listen to a song that’s not available on Spotify.

I’m assuming if there was a virus my phone would’ve been acting weird all this time but I have OCD and it’s hard to think rationally.