I think kickstarter is something where you need to have a support base before you start, then, others who are just browsing increase the amount donated by said base, but if it's just your family members and a few others chipping in, it's unlikely to get funded.
I have no idea if my experience is typical, but this was my experience: Maybe 90% of the donations came from people who hear me play the piano on a regular basis. Some of those are family and friends. Others are piano students and their families, members of the church I play for, etc. etc. A couple of them are people I know only online, and a couple of them are friends of friends of friends. Most are real-life acquaintances at least. Basically, I knew all the names, although many of them are not people I know particularly well. Most of the other 10% came from people who listen to compositions by the featured composers on a regular basis. I only had 2 or 3 backers who were not regular listeners of me or of the composers. Also, I vigorously touted the kickstarter via every online network in which I have listeners, and at least five or ten people (composers, composers' friends, my friends, my pastor, a church member, a friend of my wife's) really liked the project and took it upon themselves to tout it in their own networks.
It's probably a mistake to view Kickstarter as a place random people visit to see where they'd like to donate some money. It's more of a useful platform that you and your supporters can employ to get a project off the ground without inordinate risk to the donors and with an easy way to track donations (both for you and for the donors). And yes, the people who fund your project are likely to be people who already enjoy what you produce and want to see you produce more of it.
I was also able to show that I've already recorded and released one CD, just in a very low-budget manner, so I'm looking to do something that I've already done before with a bit more funding. Track record may help.