Here is an album that really cemented my love for progressive metal. It's hard to find now-a-days as I believe there was an issue between the old singer and the rest of the band. The album has been unavailable for stream for quite a few years now, but I finally found it on Daily Motion.
The Human Abstract - Nocturne
https://www.dailymotion.com/video/x3364t4
A.J. Minette (Lead Guitar) is an absolute monster, and very creative. His work on Digital Veil is even better as he decided to go back and take Classical lessons before putting that album together. I'm just not a huge fan of the singer they chose for that album, so I linked the one I prefer.