Group Sorting

I know this has been discussed, but I did not see the resolution. I see that you can assign a group number to each disc. Is it possible to replace group numbers with group names? If so, it would be nice to sort first by group and then by artist or album title. Curently a sort by title lumps heavy metal with jazz with opera and classical and I have to run through all of the above to generatew a cohesive playlist. Having the 30 classical CDs grouped together would be very helpful.

I tried this with keywords, but a search brings up a list of songs, not a list of CDs. This does not help in finding a paticular CD. Is there a way to bring up a list of CDs with certain attributes using the search engine, rather than a list of songs?