jīn shí sī zhú
lit. (music instruments made of) metal, stone, string, and bamboo (idiom)
fig. traditional Chinese music instruments
金
jīn
gold
石
shí
abbr. for Shijiazhuang 石家莊|石家庄[Shi2 jia1 zhuang1], the capital of Hebei
丝
sī
silk
竹
zhú
(bound form) bamboo