This is the 1863rd most frequent Catalan word.
extrema
The Catalan word "extrema" means "extreme" in English.
Here 'extrema' functions as an adjective describing the intensity of the tension as very severe or extreme.
La situació política actual és d'una tensió extrema.
The current political situation is of extreme tension.
'Extrema' in this case is used as an adjective qualifying the type of music, indicating it is unconventional or intense.
En aquesta discoteca trobem música extrema de diversos gèneres.
In this nightclub, we find extreme music from various genres.
The word 'extrema' here describes the nature of the measure taken, signifying it as drastic or unusual.