This playlist is compiled based on my current top 5 most played artists. I connect to the Spotify API based on this seed input. The Spotify engine compiles a list of recommended 50 tracks based on the seed. After the selection of the seed, I exclude all tracks I have already played before, to get a fresh list of new tracks. The playlist is compiled in the seperate data.frame from the data.frame that collects my listened tracks.

paste(as.character(spotify_reco$track_id),collapse="|",sep="") -> spotify_reco