Oehlschlägel [Oehlschlegel, Oelschlegel], Franz Joseph [Lohelius, Joannes]
- Milan Poštolka
(b Lahošť, nr Duchcov, Bohemia, Dec 31, 1724; d Strahov, Prague, Feb 22, 1788). Bohemian composer, choirmaster, organist and organ builder. He was a church organist first in Bohosudov and from about 1741 in Prague. After finishing his philosophical studies he joined the Premonstratensian order in August 1747, taking the name Joannes Lohelius, under which most of his music was written. His earliest autographs date from about 1755. Besides serving as choirmaster of the monastic churches at Milevsko (1749–50) and at Strahov (from November 1756), he spent 15 years rebuilding the Strahov church organ, making it one of the best and largest in Bohemia at the time (Mozart tested and admired it in autumn 1787); he also designed the organ of the Barnabite monastic church of St Salvator in Prague.
Oehlschlägel was a pupil of J.A. Sehling and Franz Habermann, but he evidently felt a strong inclination towards the more modern idiom of his younger contemporaries Antonio Boroni and F.X. Brixi; works of the latter are predominant in the music he copied for the Strahov choir. His own works show an amalgamation of pre-Classical and early Classical elements. His church oratorios are operatic in style, with large da capo arias, and are remarkable for the skilful treatment of wind instruments in their orchestral accompaniments. Although he was one of the most authoritative and prolific composers of Bohemian church music in the second half of the 18th century, none of his works was printed during his lifetime....