--- source: https://www.w3.org/2021/06/musicxml40/musicxml-reference/elements/time-modification/ downloaded: 2026-01-30T08:46:05.485Z --- # The element | MusicXML 4.0 MusicXML 4.0 > MusicXML reference > Elements > time-modification # The element Parent element: Time modification indicates tuplets, double-note tremolos, and other durational changes. A element shows how the cumulative, sounding effect of tuplets and double-note tremolos compare to the written note type represented by the and elements. Nested tuplets and other notations that use more detailed information need both the and elements to be represented accurately. ## Content In this order - (Required) - (Required) - In this order (Optional) (Required) (Zero or more times) - (Required) - (Zero or more times) ## Attributes None. ## Examples This element is used in the following examples: , , , (Double), , (Nested), (Regular), , Tutorial: Après un rêve