Python 3.5 - Placing Buttons on Top of Buttons
Question: So I am creating a piano program that plays sound when a button is pressed on
the tkinter gui interface. When I place the buttons at the places I want them
to be. The black keys for the piano are behind the white keys. [Image
Link](http://i.stack.imgur.com/MjoHd.png).

How can I make it so that the black keys are on top of the white keys.

Code Below

    
    
    from tkinter import *
    import winsound
    Gui=Tk()
    Gui.title("Piano")
    Gui.geometry("400x400")
    
    def PianoF():
        winsound.PlaySound("PianoF.wav",winsound.SND_ASYNC)
    def PianoGb():
        winsound.PlaySound("PianoGb.wav",winsound.SND_ASYNC)
    def PianoG():
        winsound.PlaySound("PianoG.wav",winsound.SND_ASYNC)
    def PianoAb():
        winsound.PlaySound("PianoAb.wav",winsound.SND_ASYNC)
    def PianoA():
        winsound.PlaySound("PianoA.wav",winsound.SND_ASYNC)
    def PianoBb():
        winsound.PlaySound("PianoBb.wav",winsound.SND_ASYNC)
    def PianoB():
        winsound.PlaySound("PianoB.wav",winsound.SND_ASYNC)
    def PianoC():
        winsound.PlaySound("PianoC.wav",winsound.SND_ASYNC)
    def PianoDb():
        winsound.PlaySound("PianoDb.wav",winsound.SND_ASYNC)
    def PianoD():
        winsound.PlaySound("PianoD.wav",winsound.SND_ASYNC)
    def PianoEb():
        winsound.PlaySound("PianoEb.wav",winsound.SND_ASYNC)
    def PianoE():
        winsound.PlaySound("PianoE.wav",winsound.SND_ASYNC)
    
    FNote=Button(Gui,height=15,width=6,bg='white',command=PianoF)
    GbNote=Button(Gui,height=9,width=5,bg='black',command=PianoGb)
    GNote=Button(Gui,height=15,width=6,bg='white',command=PianoG)
    AbNote=Button(Gui,height=9,width=5,bg='black',command=PianoAb)
    ANote=Button(Gui,height=15,width=6,bg='white',command=PianoA)
    BbNote=Button(Gui,height=9,width=5,bg='black',command=PianoBb)
    BNote=Button(Gui,height=15,width=6,bg='white',command=PianoB)
    CNote=Button(Gui,height=15,width=6,bg='white',command=PianoC)
    DbNote=Button(Gui,height=9,width=5,bg='black',command=PianoDb)
    DNote=Button(Gui,height=15,width=6,bg='white',command=PianoD)
    EbNote=Button(Gui,height=9,width=5,bg='black',command=PianoEb)
    ENote=Button(Gui,height=15,width=6,bg='white',command=PianoE)
    
    
    GbNote.place(x=28,y=0)
    AbNote.place(x=84,y=0)
    BbNote.place(x=140,y=0)
    DbNote.place(x=252,y=0)
    EbNote.place(x=308,y=0)
    
    FNote.place(x=0,y=0)
    GNote.place(x=56,y=0)
    ANote.place(x=112,y=0)
    BNote.place(x=168,y=0)
    CNote.place(x=224,y=0)
    DNote.place(x=280,y=0)
    ENote.place(x=336,y=0)
    


Answer: 
    for w in (ANote, BNote, CNote, DNote, ENote, FNote, GNote):
        w.lower()
    

Using a list instead of that type of names would be better.

