Pieces of music can mark time through the meter and melody. Temporality can be seen through rhythm interacting with metre. A piece of liturgical music that I like that has this quality is “Veni Creator Spiritus”. My favorite version is in Gregorian chant. This version uses a long metre, usually notated as 126.96.36.199. The piece has one melodic line that is free-flowing. The chant of the piece has a movement that flows up and down by the steps of the notes. It becomes a melodic wave moving through time as it is spread out of the long measures.