TLDR; Go check that you don’t actually want the Vocal collection and that you aren’t looking for the robot chant from episodes 10-13. Like the title says, it only includes acoustic songs, and doesn’t include the chanted/hummed version of Vivy Flourite eye’s song from episodes 10-13 that is sung by the rampaging AI (I originally misidentified “Gruesome Scene” as this when I preordered). If i’m paying 20$ for an OST that doesn’t allow purchasing individual songs, then the absolute least it can do is bother to actually include all the songs in the original soundtrack. As far as the songs themself are concerned, they’re fine. The main issue is that it is not actually the OST. My disappointment is immeasurable and my quest to find the anthem of the robot revolution will continue.