Thanks for posting here in the Google Nest Community.
It seems like you created another thread and one of my colleagues is already helping you. I'll merge this to that one. I suggest that you follow the main thread for updates because this thread will be locked automatically once merged in the main one.
Thanks for posting in the Community.
You can set your favorite music as an alarm. Select a song, artist, genre or playlist from your default music service in the Google Home app. If you have a premium account with your default music service, you can also use the premium options the service offers.
You may try using these commands:
"Ok Google" or "Hey Google"
Lastly, if you have other features that you look forward with Google Nest speakers, you can always send us a feedback by following the steps on this link: https://goo.gle/2NvQG6R
Hope this helps.