[2] He received his doctorate in 1897 and habilitated in 1902 at the University of Munich, where he taught from 1907 as a non-permanent associate professor.
[3] From 1920 to 1923 he was a professor of musicology at the Ruprecht-Karls-Universität Heidelberg, where he devoted himself particularly to the study of early music.
He founded the musicological series Kölner Beiträge zur Musikforschung [de] and was editor of the first three volumes.
[4] In the series Denkmäler der Tonkunst in Bayern [de] he was responsible for the volume about Ludwig Senfl.
Among his students were Karl Laux, Eugen Schmitz, Hans von Benda, Heinrich Strobel and Wolfgang Fortner.