EternalMidnight Mastering Eternal Midnight Mastering Studio Madrid We are Eternal Midnight mastering studio. Since 2009 we have made thousands of releases for countless artists and record labels. in addition, we have contributed to develop new audio systems and created others with our own patent (such as Mas'nlive, present in 20 countries on 3 continents). We have the experience of constantly evolving engineers, trust of many artists and recognition of making great contributions to the industry throughout our career. Welcome to Eternal Midnight