"A Few Don'ts by an Imagiste" by Ezra Pound, pub.1913

[ellajam]

an excellent post though this and other references to the same threw me a bit;

In short, behave as a musician, a good musician, when dealing with that phase of your art which has exact parallels in music. The same laws govern, and you are bound by no others.

not being a musician how can i behave as one; let alone a good one

The musician can rely on pitch and the volume of the orchestra. You can not. The term harmony is misapplied to poetry; it refers to simultaneous sounds of different pitch. There is, however, in the best verse a sort of residue of sound which remains in the ear of the hearer and acts more or less as an organ-base. A rhyme must have in it some slight element of surprise if it is to give pleasure; it need not be bizarre or curious, but it must be well used if used at all.

You don't need a good musical ear to hear the sound of a poem, but it makes one, either a clunk or an inner "harmony".