Are the backing tracks legal? Andrew August 13, 2017 03:16 Updated Follow 100%. We have a team that works hard to navigate the legalities of adding songs to our catalogue. Related articles How do I search for a song in the catalog? How do I share my Wurrly on social media? How do I get featured in-app? I identified an incorrect lyric in a song Tips for using Wurrly Comments 0 comments Please sign in to leave a comment.