Koraoke song selector

I been trying since two days but i could do the third step. Help me please.

You don't give us much to work with (not even a question), but looking at the last select and the top note (note that the duration is measured in seconds), I think this might work:

select title
  from songs
 where mood='EPIC'
   and released>1990
   and duration<4*60
;