1. Ska-P - Verguenza - the ultimate anti bullfighting song 

https://youtu.be/nzE4SgdEb4U

2. Dr Krapula - Tauricida (Castella's villain song :D ) 

https://youtu.be/1KdQwz3pxYU

3. IC434 - La Corrida de Toros (also available as a remix called Sangre de Toro where I got the book's title from)

https://youtu.be/zIcl1eh6Y4c

https://youtu.be/-p2YCPk0dTA

4. Frances Cabrel - La Corrida - a classic from very popular french singer 

https://youtu.be/SmmjKcgGWvU

5. IC434 - Animal Rights

https://youtu.be/njRzfZ_WV20

6. IC434 - Rats

https://youtu.be/lZHh4dC-C8k

7. Die Sektor - This Broken Shield (chainreactor remix)

https://youtu.be/OGxeEd3Y2k8

8. Hocico - Palabras de Sangre

https://youtu.be/sofRZDNkV6M

9. Grendel - EPR EDP (literally a song with a disgusting old man talking about how much he likes eating pork rinds lol) 

https://youtu.be/usjoX6hTAM4

10. Hocico - Dark Sunday Poizon Party IV remix

https://youtu.be/QWumG7vPHZM

11. Die Sektor - Beneath

https://youtu.be/WwtPFLgpGrQ

12. Die Sektor- Nine

https://youtu.be/FXPlvWmxC6U

13. Suicide Commando - BTK

https://youtu.be/0W2JDPCnoUo

14. Style Council - Blood Sports - anti hunting song 

https://youtu.be/VErYp4Nfgcg

15. Solitary Experiments - Darkness Falls Anxiolytic Remix by MC1R

https://youtu.be/EW3yGdlHF6E

16. Solitary Experiments - Delight

https://youtu.be/pKJkDlgByns

17. Hocico - Espinas de Mal

https://youtu.be/Bp5RalMUNSU

 
18. Mental Discipline- Butterfly

https://youtu.be/C5VaYOw0hSw

19. Die Sektor - Little Boots

https://youtu.be/7dMBA27de_E

20. Panic Lift - This Poison Remains

https://youtu.be/35SB9UzU6eA

21. Panic Lift - Time Enough At Last

https://youtu.be/2aCBkRZzigI

22. Tactical Sekt - Dark Sky - a dark electro classic with an environmental message 

https://youtu.be/TUf52JS25rg

23. Ursus - Infamia Tauricida - this track, metal vibes and lyrics (available in english on the web somewhere) perfectly fit 'based Pepelito' in chapter 38 

https://youtu.be/WreHU_lMby0

24. VAC - Collapsed

https://youtu.be/oJ-F9maS7FU

25. Hocico - Mind Circus Darkstaar vs AJ Afterparty remix

https://youtu.be/8nnJ95RkixI

Not all of these relate to the topic (although a lot of them do) some of them are just what I liked listening to when writing. And yeah probably going to add more to this from time to time.