Work on your product before your promotion
If you’re a casual producer just making music for you and your friends, then fine. If you’re trying to get the attention of bigger DJs, Labels, Managers, Promoters, and Producers – please don’t upload “New track I started 07” on SoundCloud. It looks terrible, it usually sounds terrible and as soon as one person leaves negative feedback, you’ll probably decide you don’t like it any more. Treat your new releases like Apple treat an iPhone launch – build, improve, tweak, perfect, package and then BAM – hit the world with a complete package.