We have referred to the close connection of the house of Lancaster with Waynflete's foundation. By a curious freak of popular imagination the name of Henry VII. as well as that of the future cardinal has been intimately connected with this tower. Besides other benefactions, he granted a licence for the conveyance to the college of the advowsons of Slymbridge and of Findon. In return the college undertook to keep an obit for him every year. This celebration was originally fixed on the 2nd or 3rd of October, but it has been held on the 1st of May since the sixteenth century. The coincidence of this ceremony with the most interesting and picturesque custom of singing on Magdalen Tower has given rise to the fable that a payment made to the college by the Rectory of Slymbridge was intended to maintain the celebration of a requiem mass for the soul of Henry VII. And the hymn that is now sung is the survival, says the popular myth, of that requiem. For in the early morning of May Day all the members of Waynflete's foundation, the President and fellows and demies with the organist and choir, clad in white surplices ascend the tall tower that stands sombre, grey and silent in the half-light of the coming day. There are a few moments of quiet watching, and the eye gazes at the distant hills, as the white mists far below are rolled away by the rising sun. The clock strikes five, and as the sound of the strokes floats about the tower, suddenly from the throats of the well-trained choir on the morning air rises the May Day hymn. The hymn is finished, and a merry peal of bells rings out. The tower rocks and seems to swing to the sound of the bells as a well made bell tower should. And the members of the college having thus commemorated the completion of their campanile, descend once more to earth, to bathe in the Cherwell, or to return to bed. For a repetition of an inaugural ceremony is what this function probably is, and it has nothing to do, so much can almost certainly be said, with any requiem mass. The hymn itself is no part of any use. It was written by a fellow of the college, Thomas Smith, and set to music as part of the college "grace" by Benjamin Rogers, the college organist, towards the end of the seventeenth century. Whether or no the origin and meaning of the singing was to commemorate the completion of the tower, the singing itself would appear to have borne originally a secular character. "The choral ministers of this house," says Wood, "do, according to an ancient custom, salute Flora every year on the First of May, at four in the morning, with vocal music of several parts. Which having been sometimes well performed, hath given great content to the neighbourhood, and auditors underneath."