Dropdown list to populate drag and drop sortable list

I’m listing bands playing shows. I want to be able to add and sort the
lineup for each show in a single form. Users select a band playing
from a dropdown list, which (using Ajax) adds the band to an unordered
list which they can then re-arrange.

Are these any tutorials online that cover this? Or can anyone shed any
light on it?

I’ve used a modified version of Cody F.s code for adding items
(using Ajax) to a list. And I’ve got the Rails Recipe for making a
Drag and Drop Sortable List. I’m just having trouble putting them
together.

Thanks,

Max