Question: Why are the online singing courses divided into men and women?

Response:

This distinction is important because men and women sing in different registers. They also face different difficulties. This is most obvious with the so-called register transition, i.e. the change between chest and head voice. The exercise examples are therefore also demonstrated for men by my singing students and for women by my singing students, all in the corresponding vocal registers.

Students sing songs

Florin sings Ocean
Janine sings Sunday Morning
Holger Jens sings "He Still Cares
Lena sings "Six Feet Under
Louisa Sings Make You Feel My Love