Depending on how badly this girl hates her music lesson and how big the crush she has on her music teacher, this lesson is either going badly or very well indeed:
Vintage spanking photograph is from the legendary Biederer (Ostra) studio of Paris.
"...the girls are prepared in the reformatory’s punishment room, naked, lying on their backs on special benches, bound with their legs spread above their heads, shamefully showing the two holes usually hidden..."