In Chopin Marche funèbre, measure 19, on right hand, is the "A bemol" played once or three times ? Is the "C" played three times ?
Adding also Gymnopédie 1 from Satie :
It seems that here, the F# is not played 4 times but only once. But they use exactly the same notation as the case of Chopin Marche Funèbre.