Spotify is introducing Messages, a new in-app feature that allows users to share and discuss music, podcasts, and audiobooks with friends and family. The feature is rolling out to users 16 and older in select markets. Messages provides a dedicated space within the Spotify app for the word-of-mouth recommendations that are already a key part of the platform’s experience. It allows for one-on-one chats where users can send content, react with emojis, and text back…