Is there anyway I can just use one password

Hi Emma524lyla214,

We understand you have questions about passwords and also the Music application. We're happy to help.

To start, we'd recommend providing some more specific details about your questions. What do you mean by just use one password? Are you having problems with an Apple ID password? When you say you're trying to get the Music app, did you delete it from your device and you're trying to download it back?

Answers to questions like these will help give the community a better understanding of what exactly you need help with so they can provide more accurate responses.

In the mean time, if you need help with an Apple ID password, you can find some helpful articles here: Apple ID Support

Here's some info on using the Music app: Get music on iPhone

We look forward to your response. Cheers!