I have used iTunes12 for several months and I still get lost every time I want to play music, so I have been looking for alternatives. I have downloaded "Songbird" and "Play". I like Songbird, but I cannot get either of Songbird or Play to produce sound from my computer's Yosemite speakers. iTune12 plays fine, but I've opened the Sound System Pref and no clicking and selecting sources produces sound in my alternative apps. Does Audio Midi Utility play a part in forcing my alternative apps. This is crazy that only iTunes12 can produce sound. Anyone have a suggestion about producing sound in Yosemite?