You said the magic words, "most music simply doesn't contain such content". Why? The stuff that does is mind blowing! Coldplay's "fix you" on cd has some really low bass in the middle of the song where the bass is so low there is a fluttering sensation that I can feel as well as hear. The only way I even knew it was there was by pulling up the 30 hz slider on my soundcraftsman eq. It is really clean and very desirable. There are other songs with ultra low bass where a properly designed LFE channel could absolutely enhance the listening experience. When I listen to a surround music disc MY DREAM is to control/enhance the bass to my sub by adjusting the volume of the LFE channel, but you can't do that if nothings there! What a TRAVESTY that the LFE was only designed for movies and not music. C'mon all you music production guys, TAKE US TO THE NEXT LEVEL and start putting low frequencies in the LFE channel of music discs. Just dreaming, but how about 2.1 digital discs?