He continued his researches into the history of Polish music for several years in Munich, preparing a post-doctoral dissertation under the guidance of Guido Adler.

He prepared the 22 issue of the cycle of the Publishing House of Old Polish Music (1928-1951), and the individual works of former composers.

In 1951, he published a collection of lesser-known melodies and folk songs From the Tatra Mountains to the Baltic Sea (Śpiewnik krajoznawczy – od Tatr do Bałtyku), and was involved editorially on the work Analysis and explanation of the works of Frédéric Chopin (Analiza i objaśnienia dzieł wszystkich Fryderyka Chopina).

During the German occupation he gave private music lessons and worked as a translator for a social insurance company.

In the years 1948-1949 he was a member of the Polish Academy of Learning Musicological Commission, and from 1920 the Scientific Society in Lviv.

Among his friends he numbered Mieczysław Karłowicz, Grzegorz Fitelberg, Ludomir Różycki, Karol Szymanowski, Jarosław Iwaszkiewicz, and Jan Gwalbert Pawlikowski .

[1] He was awarded the Commander's Cross of the Order of Polonia Restituta (1929),[2][3] the Golden Cross of Merit (1937) for merits in the field of science and pedagogy[4] for research on Polish early music, and the Order of the First Class Work Banner (1951)[5] in connection with the 50th anniversary of musicological activity.