Aronada -in Sanskrit: circle of the audible sleep- is a musical piece thought specifically for the setting of public premises. The number and type of instruments are indeterminate in order to power-them to choose depending on the place and the circumstance. The duration is indefinite: it doesn't have either beginning or final.
It can use itself in places where the people can be quiet or no, as the entry of concerts, theaters, cinemas, exhibitions, etc. Also if people want it can be useful for being executed in the form of concert.
The musicians can be themselves joints or separate, even distributed among different spaces.