SOLVED!!! Ok, here's how to do this.

1. In the Metadata Lookup section of Options, you have to enable search & save for what you want (lyrics or artwork). I had this one right.
2. Have the Art & Details view open. This is where I was seeing the detailed lyrics.
3. Select the [b]Now Playing [/b]tab, not the [b]Selected [/b]tab. [i]This is where I was running afoul[/i]. I had the Selected tab showing so only the selected song got updated. Once I switched to the Now Playing tab, all the songs that play get the metadata.
4. Run the Song Previewer script linked in this thread. I started at time zero and played for 1 second.

I'm still playing with how big each batch of selected songs can be before things really slow down. I think mileage varies based on whether it can find the data quickly or not. For me, this method is preferable to all the other add-ons & scripts because this just "does it".

Thank you everyone who chimed in to help me out!

[quote="jimbob_sf"]Oddly, only selecting the song with the mouse or key will trigger the scan. I've tried playlists, selecting a series of songs... and even when MM moves to the next song, it doesn't trigger the scan. MM support (awesome group) is helping me look into this one.[/quote]
You probably need to switch the art&details tab to "Now Playing" as opposed to "Selected".

Oddly, only selecting the song with the mouse or key will trigger the scan. I've tried playlists, selecting a series of songs... and even when MM moves to the next song, it doesn't trigger the scan. MM support (awesome group) is helping me look into this one.

I think in MM 4.1 you just need to play the track. Maybe the interval you set the tracks to play for is too small.

Thanks! It does move through the list, but doesn't trigger whatever event MM 4.1 is looking for. I asked the question in that thread. Honestly, I tried to search but wasn't hitting the right words.

Someone already made such a thing.
http://www.mediamonkey.com/forum/viewtopic.php?f=2&t=10146

Maybe rephrasing... Is this a simple script?

Yes, there are add-ons that add lyrics and artwork, but MM 4.1 has these built in and those scripts are a bit overkill or die with the bulk of music I have. The problem is that you can't select a list, like my 25,000 songs, and have MM work its way down the list like you can with track leveling. You have to move the cursor one line at a time with a minor pause on each line so MM can add the song to it's cache of songs to retrieve (I'm taking a guess on that because if you move to fast or hold the down arrow key, it only catches a few songs).

So....

Can someone take pity on me and write a simple script that simply moves the cursor down 1 row at a time with a .5 second pause before moving to the next row? Simple version would have the user select a set of songs, start at the first row, and end at the last.