Violinist, music teacher, and composer. D. studied violin at the Prague Conservatory from 1816 to 1822. During approximately 1825/1826 he was a violinist at the ''Graz Theater Orchestra'' and member of the ''Steinmark Music Society'', from April until August 1826 (elementary violin school) and from 1831-1833 violin teacher. In 1826 D. received permission to provide public music lessons; as of 1827 it included instruction for the playing of the organ; from 1828 also in church singing. Beginning with the school year 1829/30 and until 1833 they were held within the framework of the ''Steiermark Music Society''. Afterwards he continued until 1840. In addition, D. as a certified secondary teacher wanted to also gain a foothold as a teacher. Between 1830 and 1840 he applied for six various positions as a secondary school teacher (with his marriage, the issuance of a baptismal certificate 10/17/1835 may have also been related). From 1831 until 1840 he taught as a teacher's assistant at the ''School of the Graz Parish'' (Schule der Grazer Grabenpfarre). At the time of the birth of his only child Eleonora, D. is identified as a public teacher of the ''basso continuo'' and teacher's assistant at the ''Parochial School in Graben''. In 1840, D. moved to Vienna where he became the music director of the ''Association for the Advancement of True Church Music'' (Verein zur Beförderung echter Kirchenmusik) at St.Anna (Vienna) (successor: Ferdinand Schubert). He also instructed here music theory and general apprenticeship in sacred music. As early as 1837, on behalf of the Viennese School Inspectorate, he had already submitted an expert opinion on the improvement of church music and the establishment and management of the ''Church Music School'' at St. Anna in Vienna. He died during a stay at a spa in Marienbad (now Czech Republic) where had travelled to via Karlsbad (now Czech Republic). A Tantum ergo by D. was still performed in 1882 in Vienna. His works can also be found in the church music archives of ''Baden bei Wien'' (Vienna) and Mödling. The church hymn collection of 1835 (church hymn book) also contains two Slovenian hymns and the melody to the Easter hymn ''Der Heiland ist erstanden'' (One of D's compositions) which still widespread in the diocese of Graz-Seckau.