The information posted in the faq for tweak order is what I use now, but not exactly what I mean. We currently need to 1) be currently listening to a tune that matches the year, artist, genre, etc that we want to focus on, and 2) tweak the next song to be played by pressing a key in the remote. 3) If you want all the remaining, then press the key many times until no more matches are found. Alternatively, if you are not listening to a tune that matches your criteria you need to 1) keep the remote key pressed to elimate this and all further songs you don't want. 2) continue doing so until you get to a song that does match your criteria and proceed as in the first case.

Using the current approach I cannot, for example, listen to all my rock songs from 1971. If a feature to filter the current list existed it would be very simple. 1) Select a playlist containing all your rock tunes (e.g., 1700 tunes). 2) Search for year=1971 in the current playlist (197 tunes), eliminating all non 1971 rock tunes.

Currently, I need to a) reach a 1971 song and then press the year key in the remote 196 times. or b) press and hold the year key in the remote, repeatedly, until I finally get to a 1971 song.

Note that I can't simply search for year=1971 from the entire shuffled player, because I would end up with many 1971 songs that are not rock (e.g., some 400 songs including latin, classical, and other genres I'm not in the mood for).

The ability to search within the current playlist rather than the entire player would allow tremendous power by going through a sequential filtering process.

This could be implemented in a manner similar to the search results mode, with a search scope mode which could be set to either entire database or current playlist.