I've just recently committed an update to an older plugin of mine - JamBase4Rails. It's now called JamBase4R and is not tied to any specific framework. It can be used with Rails or Sinatra and will include specific portions automatically, however.

What is JamBase4R?

It's a Ruby library designed for simple interaction with the JamBase online live music service API. It makes it ridiculously simple to integrate a search for live music into your Ruby application.

Configuring JamBase4R

Using JamBase4R In Your App

That's really all there is to it! Feel free to try it out or fork it and let me know what you think of it. As a side note, JamBase4Rails will be deprecated soon.