Of all these associated parties, none has attained such distinguished popularity, and secured such unqualified approbation, as that of Messrs. Blagrove, Gattie, Dando, and Lucas. At an early stage of their career (the 23rd May, 1836), they were invited to perform at the “Philharmonic,” where they produced a sensation which at once established them on the pinnacle of public favour. From that date up to the 29th April, 1842 (the close of their seventh season), they continued their combined operations, with unabated _éclat_, at the Hanover Square Rooms. About that period, Mr. Blagrove, being desirous of investing his interest in a private undertaking of his own, withdrew from the association. The retirement of Mr. Blagrove did not, however, affect the stability of the “Quartett Concerts.” The veteran Loder, of Bath, recruited the party, undertaking to perform the _viola_ part; Mr. Dando resumed the principal violin; Messrs. Gattie and Lucas retained their original appointments. Thus remodelled, the party removed its attractions to Crosby Hall, in the City, where, with Mr. Dando at its head, “The Quartett Concerts” continue to be carried on up to the present day. It has been less the purpose, in this retrospect, to eulogize individuals, or to make comparisons between parties, than to set forth premises wherefrom we may reasonably conclude that the _modus operandi_ adopted by that party to which we have more particularly pointed attention, must have been the best, if not the only, road to true excellence. The Quartett demands, not only individual efficiency in its execution, but collective agreement in the expression of its parts; the nicest discrimination in delineating its delicacies; and an _ensemble_ animated, as it were, by _one mind_. To produce this unity of parts in one completeness, it is not sufficient that parties should merely play together;—they absolutely must meet for frequent _practice_ together, and (according to the light that is in them) fixing upon the best interpretation of the author’s meaning, proceed to its exemplification with simultaneous feeling and decision.