From
林逋's plum couplet
疏影横斜水清浅,
暗香浮动月黄昏, 'sparse shadows slant across the clear shallow water; a hidden fragrance drifts in the moonlit dusk'.
疏影 and
暗香 became poetic names for plum blossom, and in 1191
姜夔 took both as titles for two tunes of his own.