COMPUTERWORLD: We love music. We play it on our Macs, PCs, iPhones, iPads and iPods. iTunes sold its 10 billionth song in February 2010. What’s wrong? You should check your digital music is insured, as many insurers don’t offer coverage for your digital music collections within their standard policy — and Apple won’t help you get your music back if it gets lost or stolen — even though it could.