We recommend starting with the free songs. Have a good listen, make sure you are confident in the quality of music. From there, you can either order Genre or Custom songs.
If you just want simple lower cost songs, that are no fuss, high quality and a way to save your business ongoing subscriptions/licensing costs. Genre songs will be for you.
If you want to have a targeted plan for a staff room and shop floor or other layouts. Custom will be for you, custom is fine grain control on over how music effects your business.
