Coroner where a band from Switzerland that played a very technical form of thrash bordering on early death metal and this is a review of their 1991 album "Mental Vortex" which was released by Noise Records.
Drums range from slow, mid paced to fast drumming with a small amount of blast beats being utilized at times, while the bass playing has a very dark tone with riffs that follow the riffing that are coming out of the guitars and at times they have a very powerful sound to them.
Rhythm guitars range from slow, mid paced to fast technical thrash riffs which have some early death metal influences and from you can hear in the riffing is the origins of technical death metal as well as a brief use of soft and clean playing, while the lead guitars are very melodic and technical sounding thrash metal guitar solos and leads.
Vocals are all early 80's death/thrash screams and growls as well as a brief use of spoken word samples in addition t here is a brief use of clean singing being utilized on the last song, while the lyrics cover philosophical and occult themes, as for the production it h as a very strong, powerful, heavy and dark sound for the time it was released and you can hear all of the musical instruments that are present on this recording.
In my opinion Coroner where a very great sounding technical thrash/death metal band and if you are a fan of this musical genre, you should check out this album. RECOMMENDED TRACKS INCLUDE "Sirens" "Metamorphosis" and "I Want You (She's So Heavy)" which is a Beatles cover. RECOMMENDED BUY.