Hi ksam917.
In here you can see the products that are supported for Alsa. Alsa is part of the Yocto image in Edison, but a lot of users have problems working with it. There is supposed to be a soon answer for this issue from Intel/Alsa kernel developers as you can see in this thread. Now, you could create your own image with the Alsa packages using this guide.
Take a look at this thread; victorlazzarini used in this case the Galileo board but he used MIDI and Alsa, I think this could give you a good direction.
Regards.
CMata