[LAU] KDE4 observations + an easy question

Howdi, New to list, relatively new to audio stuff, long time GNU/Linux user. Backtraced the lists and saw some talk of KDE4. I got lumped with this when Debian unstable pushed it out (4.2.2) a couple of months back. I'd be wary of recommending anyone - with a working 3.5.x system - to upgrade unless they really need something on 4.x I've just found it a bit too unstable for comfort, even with the 4.2.4 upgrade. Even leaving aside the audio-complications you'll get with phonon and gstreamer stuff. My first question to the list is pretty easy. I think I want an application that lets me 'pause' an audio track but holds onto whatever it was playing at that time - in order to try to reverse engineer the notes. I'm sure this isn't an uncommon thing, but no idea what magic words to search for in feature lists. I could possibly do it by zooming into a waveform and making my own mini-loops, but this seems a very arduous approach. cheers, Jedd.