I don't see why anyone would get *angry* at how you or anyone else chooses to express their musical inclinations.

It's up to you and no-one else's business, unless someone is inflicting musical torture on those unable to escape from it.

The "muzak" played at high volume in our local shopping centre can get me a bit miffed sometimes, but it just means that I only go there for specific things and never brose...the exact opposite of what I suppose the intention is :-)

But as for where and when an individual plays, it's up to them.