Thank you for thinking of this and implementing it!
But, I'm wondering is there any major difference between just clicking the "..." next to the song in the default interface and selecting "Download->Audio"?
You need to create an account to access download links (and I only see this option for songs I've generated). However, it looks like each link simply points to an mp3 file based on the song id. eg:
1. Open the website https://app.suno.ai/.
2. Click on the share button above any song to obtain the share URL.
3. Paste the URL onto our website https://sunoaidownload.com/.
4. Click 'Download'.
fs_tab|1 year ago
https://cdn1.suno.ai/$SONG_ID.mp3
AUDI_GUZZ|1 year ago