Songfacts®:

• Tom Springfield (Dusty's brother), who wasn't a member of the group but wrote a lot of their songs, wrote "The Carnival Is Over" for the Seekers. He based the melody on the Russian folk song Stenka Razin (or Stenka Rasin). Stenka Razin was a Cossack rebel leader who led a major Cossack and peasant rebellion on Russia's southeastern frontier in 1670-71. He has been celebrated in a number of songs. Pete Seeger in 1953 sang an English-language version of Stenka Razin, which may have been the version known by Tom Springfield.
• Judith Durham of The Seekers shared her thoughts on "The Carnival Is Over": "That was a great song that still lives today. It is a perennial favorite and it is sung at weddings. We were very, very blessed to have met Tom Springfield as he never compromised the integrity of the group and he never got us to do things that we didn't want to do." (quote from 1000 UK #1 Hits by Jon Kutner and Spencer Leigh)
• The Seekers were an Australian group that had a run of international hits in the '60s, including "I'll Never Find Another You" and "Georgy Girl." "The Carnival Is Over" didn't chart in America but was a #1 hit in Australia and in the UK, where it was their best-selling single, selling over 1,400,000 copies.
• Nick Cave & the Bad Seeds covered this on their 1986 album Kicking Against The Pricks.
• Regarding he couplet:
  
  But the joys of love are fleeting
  For Pierrot and Columbine
  
  Pierrot and Columbine were the names of two stock characters in the old Italian pantomime-like theatre known as del'arte Pierrot was a sad clown in love with the beautiful Columbine who breaks his heart by leaving him for Harlequin.
• It was an Australian tradition for The Seekers to sing "The Carnival is Over" at the close of sporting events. Unfortunately they were unable to do so at the end of the closing ceremony for the 2000 Sydney Olympic Games, as Judith Durham had broken her hip and was not able to take part.