It depends if it's a single or a double bar line.
if it's a double bar line it's just there to separate the sections of the music and if it's a single bar line all it does it separate the beats in order to make a measure.
The year oge is 30,00 year age
White space can add to or detract from the balance, unity, harmony, rhythm and overall success of a design. White space can give emphasis, contrast, and movement
A) abstract expressionism,
He was an important member of that movement