Classical music students are trained with a metronome, which is why they keep 'tighter' time than many of those, such as folkies, etc, who are not trained thus. This means that properly trained 'Classical' musicians will usually play in a tighter sounding ensemble than inexperienced others who have mostly played on their own. Any good 'real muso' (one who LISTENS while playing) will pick up this skill after a while, no matter how they were trained.