You can try downloading the songs yourself and then post them to Moments.

Open NetEase Music, enter local music, click on the right and "Share" will appear. Click "Share" and the places you may want to share will pop up below. Here we click on “WeChat Moments”. Finally, you will enter the sharing editing interface, edit it, and send it.

When generally songs are subject to copyright restrictions, you can try downloading them to your mobile phone or computer, and that's it.