This cello came in because there was an intermittent buzz. There was also a general instability in tone across the strings, and an underlying hiss. There were several aspects of the setup which together contributed to this – the most major to fix immediately was a loose fingerboard (the fingerboard stabilises the neck, so if your fingerboard is loose then it’s important you get it seen to immediately.) I also fitted a new bridge as the old one was very heavy and slightly bent, and a new soundpost as the old one was a good fit but not under sufficient tension. The saddle was also very tall and beginning to come unglued, so I replaced that with a better fitting, more appropriately sized one.