# `Mx.Music.Change`
[🔗](https://github.com/mx-music/mx/blob/main/lib/mx/music.ex#L64)

A change to every sound of a part still playing, or to one of its effects, with `target` being the part's name or `{name, effect}`.

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*Consult [api-reference.md](api-reference.md) for complete listing*