[2] In 1913 Holst was admitted to the Royal Danish Academy of Music where he studied the violin with Axel Gade and the piano and harmony under Carl Nielsen.
He remained with the orchestra for eight years, playing under Wilhelm Furtwängler and guest conductors including Bruno Walter and Willem Mengelberg.
He founded the Henry Holst String Quartet and took up the post of professor of violin at the Royal Manchester College of Music, a position once held by his former teacher, Hess.
In a profile written in 1948 the author referred to: that memorable occasion in 1933 when with the Hallé Orchestra under Sir Thomas Beecham, he gave one of the finest performances of the Sibelius Concerto we have ever been privileged to hear.
[2]In addition to his work as a soloist and teacher, Holst led the Philharmonia Quartet, which was formed in 1941 to make recordings for Columbia.
[6] In 1954 Holst moved back to Denmark, taking over the violin class at his alma mater, the Royal Danish Academy of Music.