Well this is a MASTER PIECE!!!! Every song is full of energy, power, they are uniques.
We have a calm intro, In Excelsis, which ends in the beggining of Nova Era an excelent song full of solos and that introduces the new vocal Edu Falaschi.
Then we have Millenium Sun, a song with an quiet beggining, excelent lyrics and EPIC Solo.
Acid Rain: about this song you should listen to it. This was of the first songs I listend of this great band
Then we have HEROES OF SAND, which I consider the best song of the album. This is, well, is an epic song everyone should listen.
Songs such as, Unholy Wars and Judgment day show as the influence of brazilian music. Rebirth (the song, not the album) presents good lyrics that always cheer me up. We also have Running Alone, damn is another master piece it has EVERYTHING, and the great finale Visions of Prelude a really calm song.
Sorry for writting so much, this is my first critic and I wanted to give it about one of my favorites album of all the times, as you may notice this looks subjective, but is because I love Angra.
Simply, Rebirth is a true rebirth for the band after Matos leave the band. Angra showed as true progressive metal and a Master Piece
A must have !!!!
(Sorry for the bad english and the extention of my opinion)