Based on the provided reference, jazz began to lose popularity or "die" starting in the 1970s.
According to the Reference
The reference provides a specific timeframe and a reason for the decline in jazz's popularity.
The Timeframe
The short answer provided is that jazz began to decline in the 70's.
The Reason
The reference attributes this decline to a specific musical trend:
- So-called "smooth jazz" emerged and absorbed the name "jazz."
In essence, the reference suggests that the rise of smooth jazz during the 1970s played a significant role in the perceived "death" or decline of traditional jazz's popularity.
