"Interlude" grows out of the March's (surprisingly) quiet ending and includes an altered recapitulation of music from the Introduction.
"Ecstatic Alice," which follows, is Carroll's dream, a dream of love. It is a second setting of the poem (the same one used in "Simple Alice") colored entirely by this infatuation. What he could not express - perhaps even feel - waking is now given full, romantic rein. The key-change, too, is significant. Both "Simple Alice" and the Marcia were in A Major. Here suddenly the key goes up a half-step to B-flat major, a release from the earth-bound A!
"Ecstatic Alice" is an aria in the grandest sense of the word; beginning with another version of the "Simple Alice" melody, it soars eventually to a Liebestod-like climax, subsiding then into quietude.
In the complete performance of Child Alice, Part 1 comes to a surprisingly abrupt conclusion and is followed by an intermission. For a separate performance of In Memory of a Summer Day, I have written a concert ending.