Sound! Euphonium is a 2015 anime series by Kyoto Animation.
Clawfoot Bathtub ScenesEdit
In a short included in the volume 1 blu-ray, Kumiko Oumae explains to Hazuki Katou that she washes her instrument in the bathtub which then Hazuki has a mental image of Kumiko taking a bubble bath in a clawfoot tub with a french horn. Kumiko mentions that the other girls wash their instruments as well showing images of the other main characters bathing with their instruments in their houses bathtubs where one of the images is Reina Kousaka having a bubble bath with her trumpet in a slipper tub which is most likely a clawfoot but unconfirmed since we don't see the tubs bottom.