The sense is evidently not complete in the first line, the intention being to emphasize the beauty of the garlands to be gathered, and not merely to state that they may be gathered there. When the reader understands the exact meaning he will convey it by keeping the rising inflection on "garlands."
Similar to the foregoing is the following:
There is not a wífe in the wést cóuntry But has heard of the Wèll of St. Kèyne.
The sense is not complete until we read the second line. The rising inflection on "country" indicates this and connects the first line with the second, bringing out the meaning, that every wife in the west country has heard of the Well of St. Keyne.
Sometimes we have a series of rising inflections, all pointing forward to the leading statement which is to follow and which is necessary to complete the sense, for example:
Of man's first disobédience and the frúit Of that forbidden trée, whose mortal táste Brought déath into the wórld, and all our wóe, With loss of Éden, till one greater mán Restóre us, and regáin the blissful séat, Sing, heàvenly Mùse.
Incompleteness may be suggested by a negative statement or its equivalent:
Nót from the grand old másters, Nót from the bárds sublime, Whose distant footsteps echo Through the corridors of Time.
I do not know what I was pláying, Or what I was dréaming thén, But I struck one chord of music Like the sound of a great Amen.
Note the rising inflection on these negative clauses.