My other question is: do you think it's okay for songs to be short. I've never made anything longer than a minute. Maybe this was a weird question, I dunno. Thanks though.
if you want them to get on spotify, you're going to have to go through a lot of work to get them to accept it if it's under a minute. so i suppose at that point, the next question you would have to ask yourself is is it ok to not be on spotify