User blog comment:Litrexoid/What Makes A Good Derivative (Synthesizer Cover)/@comment-7882956-20190325221228

It could be anything for the most part as long as effort was put into it. Good tuning, good mixing, good vocals, etc. Preferably, if people especially use the same sequences (VSQ/VSQx/UST/Midi etc), we try to pick the ones with the most effort put into it (because people may choose to just plug and play. So in this regard, we're looking for those who stand out).

It's generally a subjective thing. Something we definitely don't want are "pitchloid" covers. Those typically are done by folks who take someone else's work, pitch it up or down, and then upload it. That's not okay. :/