If I delete music from an iPad will it affect music stored on any other iCloud-connected device? Asking on behalf of my mother.

The music came on via iCloud syncing AFAIK so I wanted to make sure that removing it in one place wouldn't remove it somewhere else as we'll.
It shouldn't effect other devices as iCloud does not automatically sync music between devices other than downloading newly purchased music to all devices if you have iOS configured that way. (Settings > iTunes &amp; App Store > automatic downloads > music "on")

That automatic download is one way and one time only not perpetual.