Progressive Metal from other countries than USA and Germany are always interesting and then especially when they use their mothers tongue to sing, like Sigma 5. Being from Rio de Janeiro I guess it's Spanish I hear right now listening to the album as I write. So you can see the combination then. Progressive Rock very similar to Dream Theater and Queensryche, but with Spanish lyrics.

It's hard to understand what the songs are about for sure also, since I'm not a master in Spanish, so the songs get a little uninteresting to start with then. But the music sounds really good from Sigma 5. Very tight band and with sometimes high pitching vocals.