The year 1666, the year of the Fire of London, is rather an important one in the consideration of Locke's life. It introduces us to him in another character, and that of a literary type. As will be seen later, he was a scathing and bitter critic of his detractors, and first gave evidence of this quality in the year now under notice. The cause of this outpouring of his wrath was {88} the treatment a Kyrie of his composition had received at the hands of the Chapel Royal choir. It would appear that he had set the Kyrie in an original way, giving different music to each response; such an innovation did not meet with the approval of the Choir, and they seem to have given it rather a rough time. The result was that Locke published it, and supplied a Preface entitled "Modern Church Music; Pre-Accused, Censured, and obstructed in its performance before His Majesty, 1st of April, 1666. Vindicated by its Author, Matthew Locke." Some of his observations are very severe and abusive. I give a small portion of the somewhat long and windy preface. "He is a slender observer of human actions who finds not pride generally accompanied with ignorance and malice, in what habit soever it wears. In my case zeal was its vizor and innovation the crime. The fact, changing the custom of the Church by varying that which was ever sung in one tune, and occasioning confusion in the Service by its ill performance. That such defects should take their rise from the difficulty or novelty of the composition I utterly deny, the whole being a kind of counterpoint, and no one change from the beginning to the end but what naturally flows from, and returns to the proper centre, the key". With regard to the Vindication, however convincing it might be, I believe the Kyrie was not performed again at the Royal Chapel. {89} Pepys refers to the incident in his _Diary_ of September 2nd, 1667, in which he says: "Spent all the afternoon, Pelling, Howe and I and my boy, singing of Locke's response to the ten commandments, which he hath set very finely, and was a good while since sung before the King, and spoiled in the performance which occasioned the printing them, and are excellent good." Mr Pepys evidently sympathized with the lacerated feelings of the injured author. I may say that some little time ago I edited these _Kyries_ and the _Creed_, and they have been sung in the Abbey and in various Cathedrals. The _Kyries_ are, many of them, very tuneful, and the whole setting of _Kyrie_ and _Creed_ does Locke great credit. I have not space to dwell longer upon his Church music, of which we have some excellent specimens in the way of Anthems.