My use for it is to compare versions of the same album so that does not come into play. For example, if you look at Patricia Barber there may be multiple sources of the same album - http://dr.loudness-war.info/album/list?artist=patricia+barber&album=
I am not sure of the purpose of comparing a Bonamassa album to a Patricia Barber one?
The loudness wars are well documented - http://en.wikipedia.org/wiki/Loudness_war
To me it is a tool to help decide what version of an album to buy.
I get it. I usually do not have to make a choices between different album versions or formats. I was trying to use the tool to determine if a particular album was compressed before I purchased it. But I see that it can only be used to compare the same album with different release dates or formats. In the PB example you used it is still pretty useless since almost every listing had an unknown source.
My music server displays the dB level for both channels of the entire track being played. A vertical line shows the progress of the playback. Some of my best sounding albums would not have a high score on the dynamic range chart because the music does not have much dynamic range. On the other hand some of the worst sounding albums I own have a great dynamic range but mostly hang in the LOUD area.
Then there is the exception. I am currently listening to this on CD from Chesky using their Binaural recording technique.
http://www.chesky.com/artist/cc-coletti It does not come close to showing as loud on my music server display but the dynamic range is audibly excellent and large. And that shows here (13/16/19 min/ave/max).
http://dr.loudness-war.info/album/list?artist=cc+coletti&album=I did have to crank up the volume past where I normally have my preamplifier set. That does not affect my server display. It shows the recording level, not the playback level.