Maria Scheepers van Dommelen (17 November 1892 - 1989) was a Belgian pianist who arranged works and premiered several concerti for the Hans piano.
Hans was an engineer with very thick fingers, who had asked the French firm Pleyel to build a piano he designed with an upper keyboard and a lower keyboard tuned a half tone apart.
Scheepers created the solo Hans piano part for De Boeck’s concerto and premiered it.
Her manuscript for the De Boeck concerto is archived at the Letterenhuis in Belgium.
The Hans piano was very expensive to build and fell out of use after World War II.