Complex sentence: Two tribute albums, following the first in 1999, were released on July 3,2013 and contain 25 tracks covered by newer visual kei acts such as heidi., Sadie, Matenrou Opera and Screw.
Split into simpler sentences: Two tribute albums, following the first in 1999, will be released on July 3,2013. Together they contain 25 tracks covered by newer visual kei acts such as heidi., Sadie, Matenrou Opera and Screw.