geoffkait, d2girls, oregonpapa Rhythm/pace is numero uno. One can have music with one note repeated in a rhythm/cadence. It can be acoustically dead or alive. But music is based on time first, then frequency/harmonics and then dynamics. All the other attributes of audio are extra such as imaging, soundstaging, tonal quality, etc. Sure I want all of the attributes, but without rhythm, there is no music. The imaging/holographic attributes are not a requirement for music; however, in an audio system, if the recordings has 3D sound characteristics, the better the system, the more accurate is its reproduction of it.