The koncovka is a Slovak duct-blown[2] overtone fipple flute without finger holes,[3] traditionally played by shepherds.[4] The koncovka is played by closing and opening the bottom hole of the flute.[3] By increasing the air speed, two different harmonic series of notes can be played with the end either open or closed.[5] Traditional koncovka melodies use the partial Lydian scale available on this instrument.[5]