As you saw in the previous example, the note Gbis exactly the same as F#. In music there is often more than one way of naming a note, e.g., D# is the same note as Eb, Bbis the same note as A#, etc. The different names are called enharmonic notes. All the black notes on the piano have more than one name, and white notes can as well, e.g., E@ is also Fb, and F@ is also E#.