sorry for double posting. being new here I just became aware that the place to my question was inadequate ... so here it comes again ... if a keen moderator could remove the other other one he's blessed ... --- well, just that: how often do you change your strings of your double bass ... what is the medium life duration of all the different brands out there? do expensive strings have a longer life? I assume that the chords are used ~4h every day with practicing and gigs, my fingers and my brain can't do better than that. what are the tricks to expand the life span, apart from cleaning them with a white cotton glove after you're done?