I have played the Ravel Piano Concerto in G major many times, but I only just noticed a strange note in the first bar of the cadenza in the first movement, that may be a misprint. On the second beat, there is a Db in the bass clef at the upper end of the glissando. On the following measure, that note looks the same except now there is a treble clef in front of it, making it a Bb. Is it possible that the treble clef should have been inserted in front of the previous high point of the gliss, making that Db the same note and register as the Bb after it? Musically, it makes a lot more sense. Any thoughts on this?