Personally my view is that copyright is a matter of fundamental morality, though I'd of course agree in the real world there are some grey areas. Let's take a black and white example of a band.
The band play to a paying audience in a closed venue for 70 minutes. Here the band are clearly being paid for their services, there is a clear contract between the audience and the band - and both are free and willing participants.
The band record an album in the studio, and release it for sale to the general public. Here again the band are seeking to be paid for their services and offering a clear (albeit deferred ) contract to their prospective audience - and both are free and willing participants.
If you pirate scenario 2 music you are clearly stealing the band's service and that is immoral. Does anyone disagree ?