Hi @Hamanasi,
From what I understand of how this function works in iTunes, those settings would not transfer over to Sonos since the adjustments are made for the iTunes app alone. There are programs you can use to set what’s known as replaygain tags on songs that determine the volume of the song in question. I, however, can’t recommend a particular software to do this. Since I don’t have direct experience with setting these or using the Volume Adjust function in iTunes, I’ll leave this question open for other community members to relay their experiences with this.
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