A few words on Mendelssohn and Mozart.

Byline: The Register-Guard

Pianist and Mozart scholar Robert Levin will deliver a lecture on Wolfgang Amadeus Mozart and Felix Mendelssohn - ``Genius and Inheritor'' - in an Oregon Bach Festival Discovery Series program at 5 p.m. June 27 in Beall Concert Hall at the University of Oregon School of Music.

Then on June 29, Levin will play a part in a festival chamber orchestra program of Mozart and Mendelssohn concertos, at 8 p.m. in the Hult Center's Silva Concert Hall.

Led by concertmaster Kathleen Lenski, the orchestra will open its program with two Mozart pieces that Levin knows intimately: the Sinfonia Concertante in E-flat Major for Flute, Oboe, Horn, Bassoon and Orchestra (K.297B), and Concerto in C Major for Flute, Harp and Orchestra (K.297C).

The first piece, which surfaced in a copyist's manuscript nearly 100 years after Mozart was thought to have written one for those four winds, has been the subject of a long-running argument among music scholars.

Among other things, the copy substitutes a clarinet for flute.

In his 1988 book ``Who Wrote the Mozart Four-Wind Concertante?'' Levin argued that the solo parts had been derived from Mozart originals, probably at the request of a clarinetist.

Levin also reconstructed the score for the original combination of instruments and added Mozart-style cadenzas of his own.

This is what the orchestra will play June 29. The soloists will be Lorna McGhee (flute), Allan Vogel (oboe), Richard Todd (horn) and Kenneth Munday (bassoon).

McGhee and Heidi Krutzen will be the soloists for the second concerto, which Mozart wrote in Paris, in what program note writer James McQuillen describes as "the gallant style: sunny, tuneful and refined."

The second half of the program will be devoted to Mendelssohn's Concerto in A-flat Major for Two Pianos and Orchestra. Mendelssohn wrote this piece when he was 15 for himself and his sister, Fanny, to play. Here, the four hands will belong to Levin and his wife, Ya-Fei Chuang.

McQuillen writes that Mendelssohn's concertos for two pianos are "youthful virtuoso showpieces, lucid and buoyant, in finest Mozartean fashion."