Music appreciator

Music appreciators are non-player character's found near musicians. Their clothing vary according to their locations (e.g. desert listeners will be dressed in desert clothing).

Although they are non-player characters, they cannot be interacted with, and because their right-click options bear blue text, they apparently have been coded into the game as a piece of scenery. When right-clicking Draynor Village's music appreciator, there are two options, "Examine Music appreciator" and "Examine Invisible". Examining Invisible gives "I am invisible!".

The invisible appears to be a creature designed to give music appreciators a yellow dot on the minimap as they are classed as a piece of scenery (blue text) and wouldn't normally have a yellow dot.

Invisible is also at the Shantay Pass's music appreciator. This is may be an Easter egg from Jagex.

Not all musicians have a music appreciator near them, an example of this is the snake charmer in Al-Kharid.