[1][2] He performs worldwide as a soloist and in ensembles, including with the Academy of Ancient Music, the Leipzig Gewandhaus Orchestra and The English Concert.
[9] From 1990 to 1993, Ehrlich taught recorder and teaching methodology part time at the Hochschule für Musik Karlsruhe.
In 2006, Ehrlich was elected rector of the University of Music and Theatre Leipzig, where he was re-elected by a large majority for a second term by the Extended Senate in 2010.
[11] In 2015, he was elected rector of the Hochschule für Musik Hanns Eisler Berlin by the Extended Academic Senate.
[12][4] In 2019, following the end of his period of office at the HfM Hanns Eisler Berlin, he resumed his tenure as professor in Leipzig, where he was elected to the University Senate in the same year and was designated special representative of the Department of Composition and Music Theory in 2021.