I'm interested in what took you to Bilbao and how you (presumably) have found work there, DW. Would you care 'to share', old fruit? Sounds interesting. And how important is knowing the language(s) in what you do?
By the way, I read earlier in the week that the Spanish word 'izquierda' actually came from Basque and was adpoted in order to avoid the 'sinister' association with the Latin word 'sinistra' (as still used in Italian).
You must know far more abiut such things than yours truly, of course.