Originally Posted by
The_Prodigy1982 In the previous macOS High Sierra I think... it was easy to add ringtones to iTunes and sync them with your iPhone.
But now in Catalina, how should I do this?
(there's no Tones tab within Music aka the former iTunes)
On your Mac running macOS Catalina, connect your iPhone and then initiate the iTunes app. Yeah, I know that the iPhone is managed via Finder nowadays, but trust me.
After starting the iTunes app on your Mac, select your iPhone on the left side of the screen. Drag the ringtone (.m4r) and drop it in the open space in the middle of the screen.
On your iPhone, go to Settings → Sounds & Haptics to select the section you want to associate the ringtone with. Afterwards, locate the newly installed ringtone among the listing therein.