Mellow Yellow (album) previously illustrated his infatuation with an ability to define the mid-sixties pop music scene. On "Mellow Yellow" this is still evident in "Sunny South Kensington", "Museum" (originally recorded for the "Sunshine Superman album" and rerecorded for "Mellow Yellow") and the title track, but is also tempered with world-weary observations of that scene ("Young Girl Blues"). The contractual problems that prevented the release of Donovan's music in the UK led him to write such songs as the resigned "Writer in the Sun", where he contemplates the possibility of his own forced retirement from the music industry at the age of 20.
The Yellow and Blue the end of a long life, he wrote: "It has always been a great joy to me, revisiting Ann Arbor, to hear the song still sung in fraternity houses, and on the campus in the twilight. I have heard it in mid-ocean, on the streets of Florence and Rome, and hither and yon as I have traveled about the world. A song written in the days of one's youth, if it by good luck expresses the emotion and enthusiasm of succeeding generations of young men and women, is a thousand times more worthwhile than many books of learning." The Yellow