As for the Musicodomino, the game of equivalences is also inspired, in part, the traditional domino because it is also a game of chance by distribution.
As its name suggests, the principle is not only to place a figure of note facing another same figure, but also its equivalence.
Example: a round can be placed in front of another round, but also face two white (the reverse is naturally valid), or a tick against two doubles etc. (only the white must face another blank *).
In the Musicodomino the player made the acquaintance of the figures of notes, in the game of equivalences, he learns the relation of the figures between them, which forces him to think.
* The term white means devoid of any figure.