Although her repertoire includes piano works spanning the last 250 years, Ruth has concentrated largely on Rachmaninoff and Scriabin, a Russian composer of the same era. She has recorded five albums of Scriabin's piano solos. "It's such strange music if you haven't heard it before," she says. "I gave some concerts of Scriabin at Hunter College, and talked about each piece before playing it. I was kind of a crusader at the time for his music. It was very rewarding for me. I think people are much more familiar with Scriabin today than they were 10 years ago. "One thing I love to do is to talk to the audience after a concert. There's a certain feeling of distance sometimes between the audience and classical musicians, which need not happen." On most days, Ruth practices at one of her twin grand pianos from about 10:30 in the morning until 3:30 in the afternoon, when her 9-year-old daughter Jennifer gets home from school. The walls of the Laredos' living room are covered with neatly framed fingerpaintings that Jennifer created. "She's intellectually brilliant and lots of fun. I take her to concerts with me when it's possible. When I gave a talk on Rachmaninoff to the cadets at West Point, they all called her 'ma'am.'" A native of Detroit, Ruth began studying piano at the age of 2, performed with the Detroit Symphony at 11, and entered the Curtis Institute of Music in Philadelphia at 16. There she met her future husband. During their years together, Ruth longed for a solo career, but it somehow eluded her. "I played with Leopold Stokowski and the American Symphony in the 1960s," she says. "There was a major concert I did at Carnegie Hall then, but nobody heard about it. I think that women are being accepted on their own merits today. They weren't given a chance until recently." Ruth keeps fit by riding her bicycle almost every day. She is a fan of the New York Yankees -- "I saw all the World Series games" -- and likes to do photography when she has the time. A Westsider ever since she moved to New York in 1960, Ruth lists Fiorello's (on Broadway across from Lincoln Center) as her favorite restaurant. When she needs music supplies of any kind, she goes to Patelson's (56th Street and 7th Avenue). Says Ruth: "It's a gathering place for musicians. The people who sell music there are very friendly and very knowledgeable. ... They sell records there. They sell my records." Asked whether men might have an inborn advantage at the piano, Ruth denies the suggestion vigorously. "Of course not," she replies. "I can't imagine why a man should play the piano better than a woman. At West Point, the women do everything the same as the male cadets except boxing and wrestling. Women might have smaller fingers on the average, but as far as strength, speed, and dexterity are concerned, it's impossible to listen to a recording and guess whether it was played by a man or a woman." ******** EASTSIDER STAN LEE Creator of Spiderman and the Incredible Hulk 1-13-79