I am not a fan of Basil Poledouris. Much of his music sounds the same with sweeping themes, grand entrances and quiet interludes. That’s what he writes and he does it well with with poetry…but he writes it too often.
However, if you have to listen to Poledouris you can do a lot worse than the “Lonesome Dove Theme”. This mini-series has a big reputation among western genre circles and much of it deserved. It’s not a perfect series, but it’s very, very good. Two things make the series stand out: the extraordinary on-screen chemistry between Robert Duvall and Tommy Lee Jones, and the superb music which frames the story of friendship and love between two old cowboys.
Hoover's Corner 
Tommy Lee Jones and Robert Duvall: just unfogettable personal chemistry whether on horses or in spaceships! Where ARE guys like this anymore? I used to see a lot of them hanging out with my Dad when I was about 4 years old!
They were really great together. They made the film.