[2] After completing his time at Leipzig Conservatory, he then worked as a conductor at Kaunas State Theater, and starting in 1926, taught at the Kaunus Music School.
The Music school was reorganized into Kaunus Conservatory in 1933, with Juozas being its first director and its first professor of composition.
[1][2] Because of his influential years of teaching, Groudis has been called the founder of the Lithuanian school of composition.
[3] As a composer, Groudis found his own individual style through a merging of "moderate modernism and elements of Lithuanian folk music".
The house was taken over by the Culture Department of the Kaunas City Executive Committee in 1967, where it would spend a few years as a music library, before the memorial museum of J. Gruodis was established at the site in 1974.