LTĮgyvendinant užsibrėžtą tikslą - atskleisti įvairiapusišką talentingo muziko Jono Žuko asmenybę, monografijoje siekta: 1) apžvelgti Jono Žuko asmenybę formavusią šeimos ir giminės aplinką Lietuvoje ir emigravus į JAV; 2) įvertinti studijų metų Kauno ir Paryžiaus konservatorijose svarbą jo profesinei karjerai; 3) pristačius pagrindines Lietuvos vargonų mokyklos kryptis, išskirti Jono Žuko atstovaujamos prancūzų vargonavimo mokyklos metodines nuostatas ir pedagoginius principus, kuriais jis rėmėsi savo pedagoginėje veikloje; 4) sudaryti nuo Lietuvos iki JAV nusidriekusio jo koncertinio maršruto žemėlapį ir išryškinti interpretacijoje įrašytą individualų šio atlikėjo profesinį credo; 5) susisteminus turtingą epistolinį palikimą, iš jo fragmentų atkurti Jono Žuko portretą, išskirti koncertinio vargonininko kelią nulėmusius individualius bruožus; 6) apžvelgus 2006-2016 m. vykusius Jono Žuko jaunųjų vargonininkų konkursus, įvertinti jų reikšmę šių dienų vargonų mokyklos gyvavimui [Iš Įvado].
ENIn order to fill in the gaps in the history of our national organ school, and return to prominence names of importance to us, the object of this monograph became the organ player, teacher and performer Jona s Žukas (1907-2004), who grew up in the fertile ideological soil of independent Lithuania, who did not a bide by the Soviet regime's rules and chose a course into the unknown in emigration in order to preserve a freedom of thought, speech and actions. Jonas Žukas was destined to unveil his brilliant nature. A firm character, determination, diligence, persistence, and of course talent, propelle d him down his chosen professional path. In life, he was accompanied and formed by special figures, beginning with his parents - the organ player, choir conductor and teacher Kazimieras Žukas, and his aristocrat mother Elena Klimantavičiūtė, not t o mention the people in his family's circle and study friends. He was helped along in his professional development by distinctive pedagogues - the ardent proponent of traditional Lithuanian music, composer and organ player Juozas Naujalis (1869-1934) as well as the famous French organ player and composer Marcel Duprė (1886-1971). Jonas Žukas collaborated with both of these artists from the start of his professional maturity until their final days. The strong mutual bond between these artists is evident from their rich correspondence legacy - utterly sincere letters, reflecting mutual respect and admiration. These letters are also documents of Lithuanian history, testifying to the close cultural links with other European countries. Many of the written sources given in this monograph show that while art had taken a distinct turn towards modernism in West European countries, inter-war Lithuanian organists were still driven by romantic ideas.