Music of the Trecento system of division of the breve into 2, 3, 4, 6,8, 9, or 12 semibreves (later minims) with dots (singular "punctus divisionis") indicating breaks at the end of a breve (however, Marchetto never used a term 'punctus divisionis'). Although more Trecento music is written in the international system of notation descended from Franco of Cologne and Philippe de Vitry than in the Marchettian system (and there exist a few, mostly instrumental, works not of Italian origin that use this system), nonetheless, Marchetto's contribution to rhythmic notation is so connected with the Italian Trecento that it is often referred to as
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