Which groundbreaking music industry product feature was first launched in 2019, allowing artists to directly monetize their fan engagement?

In 2019, a revolutionary music streaming feature was launched that fundamentally changed how artists connect with fans and monetize their work. This product innovation created new revenue streams for musicians and has since been adopted by multiple platforms. Test your knowledge of music industry product launches that have shaped the modern music economy!

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Spotify's Canvas (looping visuals)
TikTok's Artist Accounts
Bandcamp's Fan Subscription Service
Apple Music's Spatial Audio