Their father enthusiastically supported the musical education of his children; Jaroslav received violin, piano, and voice lessons as a child.
Křička was inspired by Russian poetry and music, and the work of composers Mikhail Glinka and Modest Mussorgsky particularly influenced his compositions.
On October 14, 1918, he married Marie Krbová, a pianist and singer in the Hlahol choir who studied under Josef Bohuslav Foerster.
During his many years of teaching at the Prague Conservatory, Jaroslav Křička trained numerous composers, including Jaroslav Řídký, Karel Hába, Emil Hlobil, Karel Janeček, Václav Trojan, Ján Cikker, Jan Kapr and Jarmil Burghauser.
He spent the last years of his life in the peaceful foothills of the Bohemian forest, where he dedicated himself to his composing in the village of Červené Dvorce near Sušice.
[1] He is buried in the Vyšehrad cemetery in Prague.In 1936, Jaroslav Křička won a bronze medal in the art competitions of the Olympic Games for his Horácká suita (Horácko Suite a.k.a.
[3] He was elected a member of the Czech Academy of Sciences and Arts in 1921, and in 1957 he received the esteemed title of Honored Artist (Zasloužilý umělec).
[4] Jaroslav Křička's work encompasses almost all musical genres, in his words, “from passions to operetta,”[2] with a distinct emphasis on vocal compositions.