Who began the Pops tradition, and why?

Father's Day is celebrating its 100th anniversary this year on June 19, and it all began when a young woman wanted to honor her dad. In May of 1909, Sonora Smart Dodd of Spokane, Wash., sat in church listening to a Mother's Day sermon. She decided she wanted to designate a day for her dad , William Jackson Smart.

Explanation:

earliest

neumes above text

neumes

colored lines

neumes

4-line staff

f, c, or g clef

notes on 5-line staff with clef

mensuration (longas and breves)

time signature (perfect or half circle)

most recent

notes on 5-line staff

modern clefs

modern note values (whole, half, quarter, and so on)

modern time signature

italian words and abbreviations for dynamics and tempo

staccato, slurs, and so on