Whats up. I'm Brett and I'm an iOS developer. LineupSupply uses Apple's Vision framework to read text from an image and then the Spotify API to create a playlist using that text. So if you provide a music festival poster, it will grab the artist names from the lineup and make a playlist for that music festival. Often when going to a music festival I want a playlist to listen to the artists that will be performing. I couldn't find any other service that automates this, so I made one myself. The app is free to create as many playlists as you want, but does have a one time in-app purchase of $1.99 to unlock additional features (control over how many songs per artist, custom app icons, etc). You do need to login with your Spotify account, but Spotify Premium isn't required. I made this app with SwiftUI and its available on iOS and iPadOS. You can technically download it on macOS too, but it's a port of the iPad app.

LineupSupply - Playlist Maker

Create Spotify playlists from music festival posters

Create Spotify playlists from music festival posters