In order to promote your music via RepostExchange, you will need to spend credits. There are two primary ways to do this:
Running a Repost Campaign
Sending Direct Repost Requests
You can increase the performance of your campaigns using:
Boosts - Move your campaign to the top of the list with a boost
Campaign Accelerator - When enabled, it Increases the speed and efficiency of campaigns
You can also get feedback on your music using:
LikePlus - enable this setting to incentivise likes on your tracks
CommentPlus - enable this setting to incentivise quality comments on your tracks
Feedback Campaigns - a way to get more detailed, private feedback on your music