UMUR "Twisted Perversions... Unbearable Delight" is the fourth demo release by Finnish death metal act Pestigore. The demo was independently released in March 1992. The preceding demos where all rehearsal demos but this time around the band went to Kermu Studios and recorded the demo in six hours. Pestigore formed in 1990 and released a string of demos before disbanding in 1993. All material from the demos recorded between 1990-1993 have been compiled and released on the "Rotten Bowel of Pestigore" compilation album (Headsplit Records, April 2023).

Stylistically little has changed since the early demos, and the listener is still treated to simple old school death metal. Both mid-paced and heavy but also occasionally faster-paced. The vocals are burbing unintelligible growling and as a result the demo has a filthy goregrind atmosphere to it, although it´s not really grindcore ("Plaguelord" is predominantly really fast though). "Plaguelord" is the only new original composition here as the three remaining tracks are re-recordings of the three tracks featured on the 1991 "Rehearsal Tape 1991" demo.

Four tracks and total playing time of 13:26 and your ears will be bleeding. Pestigore is not the type of band who takes prisoners. There´s next to no melodic themes, and the listener is just pummeled from start to finish with either ultra heavy mid-paced death metal or faster blasting death metal. The demo features a raw and unpolished sounding production, which is just a notch above the sound quality of the early rehearsal demos. A 2.5 - 3 star (55%) rating is warranted.