Prolation Prolation Prolation is a term used in the theory of the mensural notation of medieval and Renaissance music to describe its rhythmic structure on a small scale, as opposed to "tempus", which described a larger scale. The term "prolation" is derived from the Latin "prolatio", first used by Philippe de Vitry in describing Ars Nova, a musical style that came about in 14th-century France. Prolation, together with tempus, corresponds roughly to the concept of time signature in modern music. Prolation describes whether a semibreve (whole note) is equal in length to two minims (half notes) ("minor prolation" or "imperfect prolation";
Two Suns in the Sunset time, while the majority of the song is in 4/4 (or "common time"), and it is punctuated with added measures of 7/8 and 3/8. Adding to the complexity, the main theme of the rhythm guitar has chords changing emphatically in dotted eighth notes, so three eighth-note beats are divided equally in two. This is not unlike what "Mother", from the previous Pink Floyd album, "The Wall", does, and on that song, Mason relinquished the drumming duties, in that case to Jeff Porcaro. In a review for "The Final Cut", Justin Gerber of "Consequence of Sound" described "Two Suns in the