Rod40cool's instructions worked for me once I read the added comment
The workaround above works, with "device=hw:M44".
I understood what to do.
I have broken my computer by typing things in to Terminal that I did not understand, so I try to be more cautious now.
After I rebooted the computer, glorious sound was heard, but I also received the attached warning.
I followed the directions
victoria@ubuntu-home:~$ asoundconf set-default-card M44
As you can see here, Terminal did not give me any confirmation.
However, the sound still works.
Thanks again to all who helped me.