HELP-clair de lune

[katerinaprotopsaltis]

measures 35 and 36-at the end there are a group of sharps and flats-no notes following-next staves have nromal key signature-what do they mean?

[stevebob]

The key signature changes from five flats to four sharps.  After several measures, it changes back again (before the section marked Calmato).

[scottmcc]

yes...it goes from Db major to C# minor, which is an interesting modulation called the enharmonic minor--you will notice that C# and Db are the same note by a different name, but clearly the two are different keys.  Beethoven used the same exact modulation in the Moonlight Sonata by the way (1st and 3rd mvts are C#min, middle mvt is Db maj).