Which music retail innovation did market research show increased average customer spending by 37% when implemented in record stores during the mid-2000s?

The music industry's retail landscape has transformed dramatically over the decades. From vinyl records to digital streaming, how music is marketed and sold reflects changing consumer behaviors and technological advancements. This trivia question explores an interesting aspect of music retail marketing that reveals how strategic product design decisions impact consumer perception and purchasing habits in this dynamic industry.

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Interactive listening stations with headphones for previewing albums
Color-coded genre organization systems with visual browsing cues
Limited edition artist packaging with exclusive bonus content
Digital kiosks allowing on-demand CD burning of custom compilations