Which IoT innovation has NOT been widely implemented in music retail stores to enhance customer experience?

The music retail industry has undergone dramatic technological transformations in recent years. From traditional record stores to digital streaming platforms, and now to IoT-enabled music experiences. This poll tests your knowledge about how Internet of Things (IoT) technology is revolutionizing physical music retail spaces and creating new ways for consumers to discover and experience music products in brick-and-mortar environments.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

RFID-tagged vinyl records that play previews when placed on special listening stations
Smart shelving that detects when instruments are picked up and displays specs and reviews on nearby screens
Voice-activated holographic displays that demonstrate playing techniques for featured instruments
Beacon technology that sends personalized music recommendations to customers' smartphones based on in-store browsing patterns