Since 1992, Rainer Ahrens conducts the chamber choir at the Humboldt University. He graduated at the Hanns Eisler School of Music Berlin and professionally works as a recording engineer.
Regularly, Helga Delgado supports the choir rehearsals. She lives in Berlin, conducts several choirs and works as a professional singer. Helga grew up in Buenos Aires (Argentina) where she also received her academic degrees in choral conducting.