HABENECK, F. A. Correct date of birth to June 1.

HAESSLER, Johann Wilhelm, born Mar. 29, 1747, at Erfurt, received his first musical instruction from his uncle, the organist Kittel, who had been a pupil of Sebastian Bach's. At the age of 14 he was appointed organist of the Barfüsserkirche. His father, who was a capmaker, insisted on apprenticing him to his own trade, and on his commercial travels he became acquainted with the great musicians of his time, besides giving lessons and concerts. In 1780 he started winter concerts in Erfurt, and at the same time gave up his business. From 1790 to 1794 he spent his time in concert tours, being especially successful in London and St. Petersburg. In the former he played a concerto of Mozart's, on May 30, 1792. In 1794 he took up his residence in Moscow, where he died, March 25, 1822. Many compositions for pianoforte and organ, as well as songs, are mentioned by Gerber in his Lexicon. (Mendel's Lexicon.)

HAGUE, C. Mus. D. Add day of birth, May 4.

HAINL, Georges. For corrections of this article see Altès and Garcin in Appendix.

HALE, Adam de la (Le bossu, or boiteux d'Arras), one of the most prominent figures in the long line of Trouvères who contributed to the formation of the French language in the 12th and 13th centuries, was born at Arras about 1240.