The Vibe differs quite a bit from the Mood and Loudness.
Like the Mood, the Vibe is relative to a venue but unlike both the Mood and the Loudness, The Vibe is not something that is sensed or measured.
The Vibe is a target feeling that the venue is trying to achieve. It is set by the venue owner, manager, or other employee and lets us know what the venue is aiming for.
The Vibe is presented as an integer ranging from -2 to 2, where -2 is the lowest and 2 is the highest, and 0 is the neutral "base" point for the venue. This means that if the vibe is at -2 or -1 the venue is aiming for a more relaxed and calm atmosphere, while if the vibe is at 1 or 2 the venue is aiming for a more energetic and lively vibe.
Since it is not measured but set by the venue, it is reffered to as the "Vibe Level" rather than the "Vibe Index". Like the Mood and Loudness it comes with a descriptove "tag" - a string to describe the Vibe Level.