Forgive me if what I'm about to post sounds stupid or like a troll post to you. It's a genuine (potentially naive) question of a bass guitar player of many years who has just started taking double bass lessons. Yesterday I went to a "virtual orchestra" event, which consisted of a few video installations showing different sections of an orchestra at work and, separately, a 3-D film showing the orchestra at different stages from rehearsals to the concert. Obviously I spent a lot of time watching the double bass section. I expected to learn a lot, but to be honest I ended up being confused. The left-hand technique of these musicians looked inconsistent to me to say the least. I saw practically nothing of the kind of things I've been practising and that (in my opinion and that of my teacher) are making my playing more effortless. On the other hand I did see a lot of what reminded me of my technique before starting lessons, which was more or less bass guitar technique adapted to the upright bass. So what's up with this? Am I missing something big here? Looking forward to your replies, and thanks for your patience with a newbie.