Q: why is a f# commonly called f# but a eb is commonly called eb. why can't they make up their minds
A: the key of Eb is much more famous than the key of D# because the key of Eb has only 3 flats and the key of D# has 9. and the note F# is more famous than the note Gb because you start getting F#s right away in the sharp key signatures (it's in all of them) and yet with flat key signatures you don't get the Gb note until you have 5 flats or more