Its kind of incredible the Dune series is known for incredible composers.

Not only is Frank's work on Dune 2 and 2000 considered iconic soundtracks, but so is the original Dune, with its more eclectic style by Stephane who sadly recently passed away.

I'd also add that the new Awakenings game has excellent sound design.

On film, the 1984 Dune movie has an excellent soundtrack as well, with Toto's iconic songs and with Brian Eno's theme. The new movies have a good Hans Zimmer soundtrack, but I would argue a bit less innovative and more safe than the above scores.