A tuplet is a group of notes evenly condensed or expanded over a specific duration of time. For instance: A group of three eighth notes may be played within the space of one quarter note. The tuplet sign is normally placed above or below the group of notes outside the musical staff.
After polycentric is the final global marketing form, known as geocentric. Geocentric marketing standardizes products for markets that include entire nations but adapts these products wherever necessary in one complete global strategy.
The heliocentric model is a theory that places the Sun as the center of the universe, and the planets orbiting around it. The heliocentric model replaced geocentrism, which is the belief that the Earth is the center of the universe. The geocentric model was the prevailing theory in Ancient Greece, throughout Europe, and other parts of the world for centuries.