Create a new dynastic rule named “A note of discord”, and give it the text:

At the creation of this rule, every active Musician, and after that, each Musician that joins or unidles for the first time in this dynasty, will be randomly assigned a style, either Rock or Techno, which will be secretly recorded by the Frontman. Each Musician will then be notified of their style via private message by the Frontman, along with the name of another Musician who has the same style as them.

In a totally unrelated matter, change the name of the author of this proposal from “Ltn_Koen” to “Cpt_Koen”. He earned his promotion when he achieved victory, after all.
While you’re at it, change rule 2.1 name from “Central Office” to “Koen’s Band”.