Passage Summary: Because the original jazz players didn't wander too far from the main tune, any new music that wanders a lot shouldn't be called jazz anymore.

Conclusion: Modern music that features improvisation far from the original melody should not be categorized as jazz.

Reasoning: The earliest forms of jazz music involved improvisation that stayed very close to the simple, catchy melodies they were based on.

Analysis: This argument is a bit of a 'gatekeeper,' insisting that a genre's definition must remain frozen in its original state. To weaken this, we need to find a reason why the evolution of a style doesn't disqualify it from the original label. Look for an answer that suggests the defining characteristic of jazz isn't 'closeness to the melody' or that genres are allowed to change over time while keeping their names. If you find evidence that later jazz musicians were intentionally expanding on the tradition rather than abandoning it, the argument's rigid classification falls apart.