The title of this article is conjectural. The subject has no canonical name.
Rilian techno is a type of terran music. It has vocals and a backbeat. DJs of the style had a large database of terran, protoss and zerg audio bites they used for their tracks, which were later open to the public. During the era of the Terran Dominion, the music became popular on Korhal.
"Rilian techno riffs" are mentioned in StarCraft II: Heaven's Devils and "Rilian techno DJs" on the Wings of Liberty Dominion Recruitment website, but the source material is unclear as to whether "Rilian" refers to its origin, or whether it's a style. This article represents the music itself rather than either of these per se.