CoffeeBox's playlist article uses bossa nova as an example of music that can become part of a café's atmosphere. Gentle guitar, understated percussion and a familiar style may suit a relaxed room, but not every recording shares one tempo or produces the same response in every listener.
A playlist is a design choice alongside seating and lighting. Consider whether guests need to converse, read or concentrate, and whether the room already contains loud grinders or reflective surfaces. Music that sounds comfortable before opening can become intrusive when conversation fills the space. Lyrics can attract attention even when a listener does not speak the language.
Build a sequence with reasonably consistent volume and avoid sudden changes that interrupt the intended mood. Review how it feels from different seats rather than relying on a fixed beats-per-minute rule. The source's precise claims about longer visits or automatic relaxation should not become a guarantee for a particular café. At home, the same principle is simpler: choose music you enjoy, keep it comfortable and let the coffee remain a pleasure rather than a neuroscience experiment.
The conversation
A good question can make a better brew.