Thunder_nightmare.ogg (named "Thunder Nightmare") was made by me "The Potato Head" -  Creative Commons* Licence

The song in reverse mode one_fine_day.ogg (named "One Fine Day") is a cover by the original song made by Elwood Productions. 

Made by me "The Potato Head" and "Zetasphere" for his leads, FX and drums.

https://creativecommons.org/licenses/by/4.0/