More advanced playback tool - Frequency notch boost, notch cut, and notch-pass options with Q width settings

Maybe this excessive, but I could find a 4th filter option very useful - Brickwall BandPass.

I’ll often use some very steep filters if I’m having trouble locating the sound with notches because it’s a weird pitch bend sound or a scatter of resonating frequencies or to figure out where the most obtrusive band of noise is. And now that I’m typing this. You could also have low-pass and high-pass brickwall filters (or 48db/oct) as well in which high or low frequencies will be cut up to the playback cursor.

These are all strategies in addition to using notches that I’m employing all the time.
It’s quicker than having to make selections in SL and then use playback tool on them.

Can’t remember if there are already keyboard modifier commands for the playback tool, but having them tied to some of these would be great.