I just recalled that on 121W on the Dish frequency there are several test channels with an image identifying the 121W satellite position. All channels have the same audio which is pretty good jazz music when I've checked it. Any FTA receiver can receive these, but perhaps a Dish receiver can too.
If not, best idea is to obtain an inexpensive FTA receiver and dish and check the different satellites. There are many free music channels as you move across the satellite arc.