I've settled on iTunes over others which I've tried upon recommendation. I have one laptop running iTunes which is connected via usb to an OPPO-205's DAC up sampling all AAC, ALAC, and AIFF music to 24/192, outputting stereo analog to Pre-Pro. I am satisfied with the listening experience from this means to music. I have another laptop running iTunes which is wirelessly connected to my Pre-Pro via Airport Express optical S/PDIF 16/44.1 connection to Pre-Pro, whereby the Pre-Pro processes the digital music for analog output.This means to music entertainment is not quite as "detailed" as it is from OPPO DAC, I suspect because my 20 year old Pre-Pro's DAP is not as good as today's processors; but, this can only be discerned at high volume. Thing is, I hardly ever listen to music at what might be described as reference volume so the more convenient wireless access to iTunes music is how I mostly listen to iTunes. Overall, I like iTunes not only for presentation of music but for CD ripping and burning, iTunes Store, Playlist Creation function, Genius Playlists from my iTunes Library, and music recommendations. The bottom-line though is this: since even AAC from iTunes sounds for the most part as nice as stereo SACD, through OPPO's usb DAC, I'm not in the market for something else. My only objection to iTunes is no multi-channel music. But, with Foobar on my computer too that's not an issue.