Misc: what name is given to the crater at the top of a volcano caused by its collapse?

Questions

Category: American Songbook: "Heard they crowded the floor, seems so different without you, __ __ __ __ __"?

Category: American Songbook: "Heard they crowded the floor, seems so different without you, __ __ __ __ __"?

Category: American Songbook: "Here is your throat back, thanks for the loan..."?

Category: American Songbook: "I don't know why I spend the lonely nights..."?

Category: American Songbook: "I got a girl who lives up on the hill, if she don't love me I know who will"?