The school was founded in 1904 by
Samuel Myerscough (1854–1932), a well-respected musician, teacher, and examiner. Even in the school's infancy, students travelled to it from all parts of Ireland. In 1909
The Musical Herald wrote at length of Myerscough's prominence in Irish musical life: "The work by which Mr. Myerscough will be best remembered is the Leinster School of Music, of which he is the founder and inspiring force. .... Pupils came from as far north as
Enniskillen, southwards from
Waterford, and across from
Galway." In December 1941, the Irish
Department of Education recognised the School's Teacher's Music Diploma as a qualification for teaching in secondary schools. According to the
Irish Art Handbook of 1949, the school had "become one of the most important influences on the musical life of the country as a teaching, examining body." The school's original teaching staff included Madame Quinton Rosse, Madame Coslett Heller, and the piano tutors Patricia Read and May Cosgrave, a sister of
W. T. Cosgrave. Professor Patrick Joseph Griffith, a notable fiddle/violin player and teacher, and a collector of Irish Music, was a Director and Professor at the school during its early years, teaching Violin and Viola.
Arthur Warren Darley (1873–1929), a composer who put music to some famous Irish ballads (including "
The Boys of Wexford", "
Boolavogue" and "
Kelly the Boy from Killanne") was also a professor at the school. ==Location==