mikutterでSoundcloudから音楽を再生するサンプル。mikutter_gstreamer( https://github.com/shibafu528/mikutter_gstreamer )と soundcloud gem をご用意ください。

play_mikutter_drumnbass.rb

# -*- coding: utf-8 -*-
# Dependencies
# - mikutter_gstreamer
require 'soundcloud'

CLIENT_ID = 'ac11c1fa19b6bc56a48edde5e40cbc18'

Plugin.create :play_mikutter_drumnbass do
    command(:play_mikutter_drumnbass,
        name: 'みくったーちゃんがドラムンベースをうたってくれたよ',
        condition: lambda{ |opt| true},
        visible: false,
        role: :window) do |opt|
        activity :system, "一曲歌うね!!\n\n(Sound by polamjag https://soundcloud.com/polamjag/mikutter-drumnbass)"
        SerialThread.new do
            client = Soundcloud.new(:client_id => CLIENT_ID)
            track = client.get('/resolve', :url => "https://soundcloud.com/polamjag/mikutter-drumnbass")
            Plugin.call(:gst_play, "#{track.stream_url}?client_id=#{CLIENT_ID}", :mikutter_drumnbass)
        end
    end
end