Which innovative retail strategy helped HMV survive declining CD sales after 2010, contributing to its business turnaround?

In the competitive music retail landscape, innovation has been key to survival as digital streaming transformed the industry. One particular retail innovation strategy helped a major music retailer avoid bankruptcy and reinvent itself for the modern era. Test your knowledge of music retail innovation history with this challenging question!

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Expanding vinyl record sections and hosting in-store performances
Creating subscription-based streaming services to compete with Spotify
Focusing exclusively on online sales and closing all physical locations
Transitioning stores into primarily gaming and merchandise retailers