Question: I need a solution that lets me sync my music library across multiple devices, is there a DJ software that can do that?

If you want a DJ software that synchronizes your music library across multiple devices, Rekordbox is a top contender. It employs AI, cloud and automation technology to make DJing easy. With the ability to manage your library on up to eight devices, Rekordbox features high-speed track analysis, cloud library sync and cloud playback. It also offers mobile optimization through iOS and Android apps so you can manage and edit tracks on the go.

Another contender is Fadr, a web-based service with a collection of AI-powered music tools. Fadr has a vocal remover, song splitter, key/tempo/chords detector and remix maker. It also has a DJ tool for live performances and stem extraction for individual audio elements. That could be useful if you want to make remixes and mashups on the fly.

If you want to generate music playlists, PlaylistAI is worth a look. It lets you create playlists based on your preferences and moods. PlaylistAI works on services like Spotify and Apple Music and offers smart suggestions, custom playlists and personalized favorites, so it's a good way to find new music and organize your library.