How do Spotify's personalized playlists and advanced data analytics, which incorporate machine learning techniques, reflect a 'customer$-$obsessed' strategy $($as quoted in the Medium article$)$ aimed at enhancing the user experience and maintaining a competitive advantage in the streaming market?How can other industries and brands adapt the principles behind Spotify's success, particularly its personalized playlists and data analytics, to better align their content with their target audience's preferences and needs?Considering Spotify's launch of streaming ad insertion technology, as reported by The Verge in January $2020,$ how might this innovation affect artists and podcast hosts in terms of reaching their target audience? Discuss the potential for this technology to enhance audience engagement and monetization opportunities for content creators on Spotify