First thing, this is not metal. But Riverside is one of the flagships when it comes to the soft shoulder of melodic prog-metal. Originated from Poland, they write lenghty songs, layered, with clean vocals

Hemina is per their site 'a 4 piece Progressive Metal band from Sydney, Australia. The band’s sound has been described as a unique combination of hard hitting syncopated grooves, lush synth backwashes,

A prog jem, with angelic voice of Belgian singer Jasper Steverlinck from Arid. Guilt Machine is a project from metal-mastermind Arjen Lucassen. Twisted coil is one of the better songs. 

Professional shredder Andy James brings you, straight from jamtrackcentral, one of his great instrumental metal tracks: Burn it down. If you're in for some mindblowing guitar licks and riffs, give it a

Check this one out, Carnal is my favorite powerful 4arm song... The bite of a scorpion is very painful! 

Check this one out, Angel, a great song from Pantommind. (The first link brings you to the song in the full-lenghth album on Youtube, the second one opens the facebook page of Pantommind. )