The timeframe for the MIDIs that are being discussed is from 1993–1997, but regarding the Doom WADs that are in use, the Doom series was very popular between 1993 and 2006. Towards the latter end of that period, KraiSoft released four games that had MIDI music composed by Vakhtang Adamiya: Astrobatics, Atomaders, Alien Sky, and After the End. Only the first game had any music used in a Doom II wad. The other three did not. The MIDIs for the other three games are found at https://www.youtube.com/watch?v=zbCUZ_MjvXs, https://www.youtube.com/watch?v=03lKyyfxbwA, and https://www.youtube.com/watch?v=cOU4ZvYIQdU.