While based in Edinburgh, Mohr-Pietsch embarked on a career in
arts administration and began to broadcast on Radio 3, winning a BBC talent contest in 2004. After moving back to London, her involvement with the network became more extensive. She became a regular presenter of the network’s
Breakfast programme in 2007. Her fortnightly stretches alternated with those of
Petroc Trelawny; previously
Rob Cowan was the other regular presenter. In addition, she presents (with others) the contemporary music programme
Hear and Now. and on television for the BBC. At the beginning of December 2013,
Clemency Burton-Hill replaced her on
Breakfast. Mohr-Pietsch regularly presented Radio 3's
The Choir, and the
Discovering Music series, particularly in programmes on
Johann Sebastian Bach, whom she greatly admires and has studied extensively;
early music is another interest. In April 2024, she began a new series, "Music Map" for BBC Radio 3, in which "Mohr-Pietsch explores a piece of
classical music, travelling to it through a playlist of connected and contrasting sound worlds, and mapping it in a musical landscape". In addition, Mohr-Pietsch co-presents "Night Tracks", described on the BBC Radio 3 website as "an adventurous, immersive soundtrack for late-night listening, from classical to contemporary and everything in between". She is also a singer and
pianist and plays the
viola da gamba – "incredibly badly" in her own words. In November 2018, the
Dartington Hall Trust announced that Mohr-Pietsch had been appointed as the artistic director of the
Dartington International Summer School and Festival. She curated her first festival in 2020, in succession to
Joanna MacGregor. It was announced in November 2023 that Mohr-Pietsch had decided to stand down from the role after four years, amid speculation about the Summer School's future. ==Voice==