The <relation> element.
<relation>
A related resource for the music that is encoded. This is similar to the Dublin Core relation element. Standard type values are music, words, and arrangement, but other types may be used.
https://www.w3.org/2021/06/musicxml40/musicxml-reference/elements/relation/
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The
<relation>element.A related resource for the music that is encoded. This is similar to the Dublin Core relation element. Standard type values are music, words, and arrangement, but other types may be used.
See
https://www.w3.org/2021/06/musicxml40/musicxml-reference/elements/relation/