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.
In modern calculations the terms geocentric and heliocentric are often used to refer to reference frames. In such systems the origin in the center of mass of the Earth, of the EarthâMoon system, of the Sun, of the Sun plus the major planets, or of the entire solar system can be selected; see center-of-mass frame.