"Minor" tunes are in Dorian mode, so 3rd position (the majority), or Aeolian mode, 4th position. The fact that I was cheerfully playing all these modes/positions, blissfully unaware that here on Harp-L and elsewhere there were angst-ridden discussions going on about how to do it, has led me to the conclusion that its often best to see the harp as a bunch of notes waiting to be played rather than a complex beast with almost as many positions as the Kama Sutra! ;-)