Don’t be alarmed by the symbol. The Rifftides staff merely wants to call your attention to the new batch of suggested things to listen to, watch and read. You will find brief items about CDs by a trailblazing harmonicat, a piano/flute couple and a pianist who keeps you guessing—and entertained. We’re holding onto a Lee Konitz DVD a while longer, and telling you about a book by an expert who doesn’t buy the idea that mental instability must accompany genius. The recommendations are under Doug’s Picks in the right column and, for a time, directly below this alert.