A sheet music edition of an early 1900s song entitled "You Taught Me How to Love You, Now Teach Me to Forget" was hand lettered in a free-form Art Nouveau style that integrated differing line widths and character shapes.
This unlimited style of lettering was commonly accepted and revived by the hippie counterculture of the mid-1960s through the mid-1970s through their rock concert posters, record album covers and tee shirt graphics.
It is now offered digitally as Nouveau Artiste JNL.
As a side note, a 1940s reprint of the sheet music was performed in a popular metal typeface, which was also redrawn digitally and offered as Elite Resort JNL [in both regular and oblique versions]
.Font Family: Nouveau Artiste JNL Regular