A few reasons:
1, I am asking for a friend - literally - as part of 1979-themed programming at a radio station for which I volunteer. Given that my jazz accumulation focuses primarily on late-1930s to mid-1970s, it is very likely that I have no jazz albums from 1979.
2. 1979 is the year when I first began listening to jazz radio on the aforementioned station. While they were playing older classic stuff, of course, they were playing new stuff also, so I wanted to jog my memory with regard to new things that may have been in heavier rotation.
3. As I (probably) have no jazz albums from 1979, I am curious to learn where jazz was as it stood at the threshold of that most dreaded of decades: the 1980s.
Thanks all for the recs so far. I will sample these albums on the InterTubes.