This p5.js sketch makes a 'cover' image based on an auto updated
Spotify playlist
by Listige
(upvoted song posts in music subreddit get
added).
Each of the 25 songs in the playlist is represented by an arrow, the 'upvote' icon .
The base colour of each arrow is defined by the year the song
was released.
Further Spotify metadata used: Higher 'danceability' → more glow.
'Instrumentalness' → affects gradient on the arrow. In 'auto' mode, the
'energy' of the first and last song have an impact on the shape of the spiral.