Burton Cummings learned to play the flute for this song. In his old band The Deverons he played saxophone. Randy Bachman encouraged him to play the flute for some of their songs, to give them a spacier feel. Right after Randy wrote Undun, The Guess Who played a YAMAHA music store opening where they had a flute in the display case. Burton learned from the dealer that the fingering for the flute was the same as a sax (except for C), and a classic was born.
Richard - Lansing, MI