Erik

Hey there, Im looking at buying a duet concertina and was eyeing the troubadour. However the bidirectional and unidirectional forums have me totally confused? Which orientation is "normal"? I have played guitar for years so the concept of my left hand hitting notes increasing in pitch from my index finger to pinky seems natural. I want to pick up the Concertina to play sea shanties and campfire music. How should i proceed?