This video shows a song with lyrics, number of speakers and linguistic branch for each language spoken in the Iberian Peninsula (except for Extremaduran and Xalimego): Portuguese, Galician, Mirandese, Leonese, Asturian, Spanish, Aragonese, Catalan, Occitan and Basque.

It also shows the geographic distribution of each language in the Peninsula. The video is in Portuguese, but I think it is pretty easy to understand anyway.

https://www.youtube.com/watch?v=SnClrlNsmRs