Hi im new here, i have a few mouths playing fretless, i have a 6 strings, and looking for things to play on ear a found a old video, here is and i have a problem with 00:50 part, there is a harmonic that sound that i heard is a F but i dont know how he made it cause of the posititions of his hands. If somebody could help me with that i would be grateful because i have no bass friends lol