When I was a believer, my faith wasn't static. For much of my life I did believe that salvation depended on grace, plus avoiding certain sins (as most Christians today seem to believe). At the very least one should commit different sins each time (i.e. "fall in sin") rather than doing the same ones over and over (i.e. "living in sin")
I was told in no uncertain terms that I had to choose between heaven or my record collection, and at the time I sadly believed it. But whether or not people believe a rock record itself will send them to hell, or merely increase their chances of going there, the net result is the same: you can't be a (true) Christian
and listen to certain bands. Or certain instruments. Or breathe in a particular way, or arrange your limbs in a certain fashion. In other words, Satan has the ownership of certain frequencies, bodily movements, rhythms etc.