The Moto Z2 Force has a microSD memory card reader. If your personal computer can also read that card type (Most notebooks are so-equipped), you should be able to save music files
The Motorola Moto Z2 Force is an Android phone and there are plenty of free ringtone apps such as MP3 Cutter, Zedge and more.
More on free ringtones
Here are links to some of the 100% free ringtones (Motorola Moto Z2 Force-compatible) offered here at MartinsRingtones.com:
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