I can't say that there's a common practice that has to do with pitch language or with the way pieces are put together because today, anything is fair game. As far as I'm concerned, my own common practice is a piece that engages the attention of listeners from beginning to end, and doesn't rely on or expect the listener to zone out.
Paul LanskySometimes I imagine that there's a binary division going on in contemporary practice that has to do with chromatic versus diatonic. I notice that I tend to listen in a diatonic sense, that I register a pitch as a member of a diatonic scale, even in a non-tonal context.
Paul LanskyWith repeated listenings, a piece eventually becomes its own being. I very often say to students that this is like meeting a person for the first time. When you first meet someone, you reference that person with others who are similar; but, as you get to know that person better, you begin to understand his unique qualities.
Paul LanskyWhen you have performers, there's the uniqueness of live performance and what performers do in concerts.
Paul Lansky