Recently I have seen E# in my sheet music. I play a flute but I also have a piano. And on the piano there is no black key above E. Can somebody tell me how to play E# on a flute or at least on a piano.
The # sign means to raise the note one half-step. On the piano, that means to play the next note immediately to the right, regardless of whether or not it is a black note!
If you look at E on the piano, you’ll notice that the key one half-step above E (immediately to the right of E) is F. Therefore, E# = F.
It may seem rather silly to spell it as E# when they could’ve just put F natural instead, but there are times when, depending on what key you’re in and the context of the music, it is actually correct to spell it as E# rather than F.