The first track is Solvet Cosmos in Favilla by Aries. This track has a very obvious "mechanical" sound, and I have to admit it is very boring, completely repetitive and just seems like the artist has smacked their hand into the synth declared it as a sample. Less repetition and a shorter track would have been a better move.
The second track is Turdus Merula. Rui P. Andrade is one of the trio of the noise/black metal group Ecos, an influence that can be slightly heard in this track. It's the most sinister of the 3, and uses a lot "darker" samples than the other 2 songs. It picks up steadily towards the end, less bass-like synth and just decently produced and choreographed guitar feedback. Turdus Merula seems to be more thought out and better produced than the rest of the tracks. Definitely the strongest song on the album.
The final track of the split is by Earthly Beasts. Erebus starts out very strongly, and seems to be made of distorted/edited mixes of various instruments (guitar, bass and percussion) rather than just computer samples, which is a nice touch as it makes the song sound noticeably different to the other 2 tracks on the split. Sadly it again seems to be 3-4 minutes too long, making it repetitive, and has a very weak, almost nonexistent outro. I had to double check if it had stopped playing as it was such an abrupt end, as if the track was half finished.