To know weather to play sharp flat or minor vs major
A collage is put together by various pictures. It’s not focused on just one thing. It’s a gallery of many other photos.
Fernando Bertano, The Musicians, 1991
Gustav Klimt, The Kiss, 1907-1908
Wassily Kandinsky, Circles in a circle, 1923
Piet Mondrian, Broadway Boogie Woogie, 1942
Hope this helps!
MidnightQueen