But you didn't copy the music and then delete it. You enjoyed it. There was a gain on one side and nothing exchanged for that gain. The lack of reciprocity is the root issue.
Either you can't see the moral argument, which leads me to believe you really are unable to see that piracy is theft. Or you simply don't want to see it and then I fall back to think this is motivated ignorance.
If you don't care to engage with the idea then I don't care to continue.