Nokia’s global head of music Liz Schimel isn’t impressed by ad-supported music business models when they’re not backed up by a premium model. “As the audience grows, there are going to be interesting ways to innovate our model,” she tells Music Week. “Potentially advertising can be one of them. As a standalone model, it has a lot of challenges. Most of the purely ad-funded models have struggled on the business model front. We are seeing many of those services migrating to subscription.” In truth, it would be more surprising if she’d backed standalone ad-supported models.