Hi LeeDana,
Welcome to the Apple Community.
You might want to trey this article from Apple Support:
Change or turn off iPad sounds:
Says:
Set sound options
Set options for alert tones and ringtones, and ringer and alert volumes.
- Go to Settings > Sounds.
- Drag the slider to set the volume for the ringer and alerts.
- Tap Ringtone and other options to select sounds for the ringtone and alert tones.
Complete article:
https://support.apple.com/en-lamr/guide/ipad/ipadffb110fc/15.0/ipados/15.0
And / or
"Use tones and ringtones with your iPhone, iPad, or iPod touch"
Says:
Learn how to change the sound that you hear when you get a call, text, email,
or other notification on your iPhone, iPad, or iPod touch.
How to change your ringtone
- Go to Settings > Sounds & Haptics.
- Under Sounds and Vibrations Patterns, tap the sound that you want to change.
- Tap a ringtone or alert tone to hear and set it as the new sound.
And / or
Set a ringtone or text tone for a contact
- Open the Contacts app and tap a person's name.
- In the upper-right corner of the person's contact card, tap Edit.
- Tap Ringtone or Text Tone, then choose a new sound.
Complete article: https://support.apple.com/en-lamr/HT207955
If you need to add ringtones:
Get ringtones, text tones, and alert tones in the iTunes Store on iPad
https://support.apple.com/en-lamr/guide/ipad/ipade0818772/ipados
All the best :-)