Dave,
Where the meta-data tag already has a name like "artist", "album", "title", "year" or "genre" it is easy to throw in some text because we know the text relates to that title. But in the "Comments" field it's pretty much open format for us to decide how we enter the info.
The ONLY reason for putting in the field names before the data in our case is to give a presenter some extra info to talk about during a live show. Of course we could stick a bit of paper on the LCD screen to explain the decode of what all the "Comments" data means - but we might end up with "Post It" notes all over the place and that would be untidy.
As Dmitry said, it's best to pre-process all this stuff and throw it into categorised playlists then let PG Pro do the final assembly for the onair mix.
So the way I see it happening for us is that we go into the music library xml database and do a search for Status#AP then save that result to a new database called Approved.
Then open that Approved database and search for 196 being all years in the 1960s and save that to a database. Do the same for 197 ..... and so on.
This is my way of doing a multi field search but using a few stages.
If multi word searches are available now or in the future I would amend my strategy to:
Status#AP BB#196 Cat#AC ... (adult contemporary)
And the results for that should be those songs we have approved from the 1960s that are adult contemporary ... and those results would be saved to a playlist labelled accordingly.
Same with the 1970s, 1980s, 1990s ....
And as we rip more CDs and manually check and classify them we can run through the process again to update the playlists. We would probably process the filter update only once per month if we have to do it manually - or once a week if it was possible to schedule it to be done automatically.
Certainly having some scheduled process running automatically in the background would be of great benefit and eliminate the "human" factor of forgetting to do it.
The other thing that I am working on is a method of knowing what new CDs have been ripped and added to the music library and somehow creating a monthly printout of the new additions so that our "music skilled" presenters can mark up the list with "Approved to Play" tracks and they can be tagged accordingly.
The successful management of the music library is a mission critical task and it will be a good feeling to know that it's all under control. At Radio Dungog we probably play a maximum of 2,500 songs over a 7 day period and we need to be serious about those songs being the right ones for our audience.
Thanks, Jamie C.