Why do Christians stand when we sing?

In my experience, every church I've either been in or seen recorded ask the congregation to stand when they sing. Without having done a scientific study, it seems this is a near-universal practice among Christians (and please correct me if this is wrong). Is there a biblical basis for this, or is it merely a wide-reaching convention? If so, is there anything to suggest when or how this practice may have begun? *I recognise this question may be at the border of what's on-topic. I've tried to keep in on-topic by not asking why we sing, but for the biblical basis and history of this specific Christian practice. Given this practice seems to be the same amongst many denominations, I hope it's ok not to specify a particular group.*