BOB'S BOOMERANG
Longways duple, IMPROPER (or gender free with L = first corners)
Mike Richardson, c. 2000  Tune by Anita Anderson, 2000
6/8, G relaxed, bpm: 110

A1 1-4: Ladies (first corners) advance and retire
   5-8: Gentlemen (2nd corners) set moving forward, turn single to place
A2 1-4: right hand star
   5-8: left hands back (keep moving that way into)

B1 1-4:  Whole-set dance single file CCW
   5-8:  dance single file back
         [couples out at the ends participate in promenade]

B2 1-4:  Same two ladies initiate open chain (right hand half way,
         left to partner all the way around ...
   5-8:  repeat to home place

Bruce's teaching notes:

Keep moving through the easy transitions:
 * Turn single -> RH *
 * LH * -> promenade
 * Promenade -> chain
 * chain -> next ladies advance

* Chain progresses because the couples start with gent to R of lady, rather 
  than the usual position.
* During promenade back, tell the ladies "Look for the lady who has been
  walking in front of your partner, take right hands with her and do an
  open chain over to partner"