Zuul is great. After using it for about a year in production, I must say Zuul is everything I hoped for and more (coming from a Jenkins deployment previously.) Some of the concepts take a bit of effort to wrap my head around but once I understood them they make a lot of sense. Leveraging of Ansible is great. Making jobs cheap and inheritable is awesome.
I think we should start adopting the term 'tinnitus' when people argue with 'dogwhistle'. Just because a person calling X a dogwhistle of Y doesn't make it so.
Can you elaborate more? What are the things that are bad for general amp but good for guitar amp? Is the amplification non-linear in some specific ways and how does it help with guitar music? (I know nothing about guitar except what it looks like.)