Compound noun: upswing.
Nousukausi comes from nousu, a noun meaning an ”increase” or ”rise.” (Nousu is related to the verb nousta, meaning ”to rise.”)
And from kausi, a noun meaning ”age” or ”period.” (In the context of TV, kausi can also mean ”season.”)
Together, nousu + kausi mean something like ”rise period” literally, but figuratively this is known as an ”upswing.”
From our example advertisement, we see this band is called Nousukausi, and they have their debut album coming out on Warner Music Finland on May 17th called ”Taivaspalat.” Taivaspalat means ”Pieces of Heaven” and comes from taivas, meaning ”heaven” or ”sky.” Palat is the nominative plural of pala, meaning ”cut” or ”piece.”
You can listen to the track ”Vähitellen olet poissa” (”Little by little you’re gone”) from Nousukausi on Youtube here.
Nousukausi is also the name of a 2003 Finnish black comedy film.