'The Red, Red Rose' is a ballad, and though it is read as a poem it is a Scottish high-land ditty by origin, altered by Burns and meant to be “played to tune” or sung. The poem is structured gradually from simple to overpowering similes and metaphors moving the theme of love from a very simple visual satisfaction to an eternal emotion that conquers time.
In the very first stanza the poet expresses the delight or joy that he feels on first seeing his lady love. He compares it to the joy a nature lover may feel at the sight of a blooming red rose. In the very next two lines to conclude the stanza he says “Oh my luve is like the melodie, /That's sweetly play'd in tune.” There is a suggestion here that his joy is increased manifold when he speaks of his love and joy to his lady.
There is a double meaning here, where the ‘sweetly play’d in tune’ indicates the poem, which is also the expression of the poet’s emotion of delight, as declared to the world.
In this very first stanza Robert Burn supports that the emotion of delight increases when it is experessed. Since with each passing stanza the feeling of love moves to a climax where it ultimately is equal to challenge even the ravages of time, by the order of placement of expression after sighting, the poet seems to indicate that on declaring of his joy/delight, the feeling was further strengthened.