Amy Lowell

One important, often overlooked Imagist poet from the Modernist period is Amy Lowell. Here's an example of her work--it's classic Imagism, beautiful and almost like Shelley--this is her poem "Hora Stellatrix" [hour of stars] from here, where you can read her whole volume A Dome of Many-Coloured Glass:

          The stars hang thick in the apple tree,
          The south wind smells of the pungent sea,
          Gold tulip cups are heavy with dew.
          The night's for you, Sweetheart, for you!
          Starfire rains from the vaulted blue.

          Listen!  The dancing of unseen leaves.
          A drowsy swallow stirs in the eaves.
          Only a maiden is sorrowing.
          'T is night and spring, Sweetheart, and spring!
          Starfire lights your heart's blossoming.

          In the intimate dark there's never an ear,
          Though the tulips stand on tiptoe to hear,
          So give; ripe fruit must shrivel or fall.
          As you are mine, Sweetheart, give all!
          Starfire sparkles, your coronal.

Here is "Listening", which is great:

         'T is you that are the music, not your song.
           The song is but a door which, opening wide,
           Lets forth the pent-up melody inside,
          Your spirit's harmony, which clear and strong
          Sings but of you.  Throughout your whole life long
           Your songs, your thoughts, your doings, each divide
           This perfect beauty; waves within a tide,
          Or single notes amid a glorious throng.
           The song of earth has many different chords;
          Ocean has many moods and many tones
           Yet always ocean.  In the damp Spring woods
          The painted trillium smiles, while crisp pine cones
           Autumn alone can ripen.  So is this
           One music with a thousand cadences.