So we'll talk a bit about community. We've already talked about social media, and of course it is just one way of being a part of the wider mobile music community. But for me the main things is about a conversation with people who share the same interests as you. It's about community and that in itself is a pretty big topic.
I'm not planning to say everything there is to say about community in this post. For a start it would be impossible and also there's so much that been written about community that I wouldn't do it justice. However I can start things off.
Deciding how to engage your community is an important first step. Do you want a forum? Having a forum isn't a decision you should take lightly. It requires a lot of time and effort in managing it and it might not actually attract enough users to make it viable. If you take that step make sure you're in a good position to keep it going.
But there are other ways of engaging your community. Being a part of other communities online isn't good start. There are plenty to choose from now. There are communities on Facebook and forums such as the audiobus forum to look at for a start.
You should also look at some of the bigger communities already in existence. Such as the beatmaker community, NanoStudio and others. Just to see how they work and to get a view on how much work it takes to moderate them.
So be careful about diving in to building a bespoke community all at once. Take some time. Look at what others are doing and make a considered decision. It'll pay off in the long run.