Which music streaming platform launched the revolutionary "Sound of Streaming" brand positioning campaign in 2019 that included a unique sonic logo used across 75 countries?

In today's competitive music industry landscape, sonic branding has become a crucial element of brand positioning strategy. Companies are investing millions in creating distinctive audio signatures that trigger immediate brand recognition. This poll tests your knowledge about one of the most successful sonic branding campaigns that revolutionized how we think about audio identity in the digital streaming era.

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Spotify, with its three-note ascending melody that became recognizable to 90% of target consumers within 6 months
Apple Music, with its five-note signature sound inspired by classical minimalism
Amazon Music, with its distinctive four-note pattern incorporating the voice assistant's activation sound
YouTube Music, with its percussive rhythm sequence derived from the original YouTube notification sound