[10]Nissen, one of Mozart’s biographers, says this concerto was written with a full score of accompaniments, including even trumpets and drums. This, however, is probably incorrect, for the compositions of his earlier period are mainly for strings, and the few wind instruments usually found in the small orchestras of that period. [11]The word “concerto” in this connection is probably used in its old restricted sense, when this musical form resembled the sonata. The modern form of the concerto was fixed by Mozart, but at a later period in his life. [12]The first of Mozart’s compositions catalogued by Köchel is a minuet and trio for piano. Upon the manuscript, which is still preserved, his sister has written: “The undersigned witnesses that this piece was composed by her brother in his fifth year.” The original is without title, and bears the date 1761. [13]Linz, the capital of upper Austria, is a city of about 50,000 population, on the Danube River. [14]In a letter written Oct. 16, 1762, Mozart’s father says: “The following Tuesday we reached Ipo, where two Minorites and a Benedictine, who had been our companions on the water, said mass, between which our Wolferl rattled about on the organ, and played so well that the Franciscan fathers, who were entertaining some guests at dinner, quitted the table, and, together with their company, hastened into the choir, when their astonishment was inexpressible.” [15]Georg Christoph Wagenseil was born Jan. 15, 1715, in Vienna, and died there March 1, 1777. He was the Court composer, organist to the Dowager Empress Elizabeth, and music master to the Empress Maria Theresa and the imperial princesses. [16]Andreas Schachtner, Court trumpeter, in his recollections of Mozart, says: “If a trumpet was held before him, it was like putting a loaded pistol to his ear. Papa, wishing to overcome this childish dread, on one occasion told me not to mind this aversion, but to sound the trumpet near him. Scarcely had Wolfgang heard the shrill sound when he turned pale and began to sink to the ground. Had I gone on he certainly would have fallen in convulsions.” [17]Baron von Grimm was a distinguished German-French critic and author, and one of the most brilliant literary celebrities of this period. [18]Mozart and his father left Paris for London, April 10, 1764, and remained in England until August 1. The children were kindly received at Court, and made as usual an extraordinary impression. [19]Upon arriving at the Hague, Mozart’s sister was first taken ill, and then Mozart himself took a violent fever, which lasted several weeks. It was nearly two months before he could play in Holland.