gistfile1.rb

# in gemfile

gem 'soundcloud'
#don't forget to bundle install

# in haml

= @embed_info['html'].html_safe if @embed_info


# in controller

      client = SoundCloud.new(:client_id =>  "[your_soundcloud_id]")
      track_url = @user.soundcloud  # any soundcloud url ex http://soundcloud.com/tripp-karrh-audio/fantasy
      @embed_info = client.get('/oembed', :url => track_url)