Brendon Small’s “Galaktikon” is as much a story about finishing what you started as it is the divorce of the galaxy’s most popular superhero. Halfway invested prior to the recording of “Dethalbum II,” Small shelved this ad-hoc unfinished project until such a time as he could return to it and complete it. From that end, “Galaktikon” is anything but a typical vanity project, and shows not only Small’s dedication to his artistic exploration, but also his loyalty to Gene Hoglan and the musicians who helped him create it. He doesn’t want their work to be for nothing.