Read "Harmony" at The Eldritch Dark:
This short poem from Clark Ashton Smith (CAS) is slight, but nonetheless captures the yearning for a love as perfect as a favorite natural setting:
Black pines above an opal tarn
And the grey cliff above the pines
And the clouds above the cliff,
Rose-hued with a hidden sunset ....
The cascading references to "pines" and "the cliff" provide that first stanza with refrains which lend it a musical quality.