When using a Spotify album or playlist with a free Spotify account the fact that SaA keeps opening itself causes Spotify to stop playing the ad which means the music doesn’t play either.
My suggested solution would be for the alarm to enter a popup window if the app goes into the background while it’s ringing. This would allow another app, such as Spotify, to be the open app, while still allowing access to the alarm interface. It also might be useful if the alarm going off coincides with needing access to email or a text message that needs immediate attention before the captcha is completed.