Orff's ideas were developed, together with Gunild Keetman, into a very innovative approach to music education for children, known as the "Orff Schulwerk".
Ide-ide Orff kemudian dikembangkan, bersama Gunild Keetman, menjadi suatu pendekatan yang sangat inovatif terhadap pendidikan musik anak-anak bernama Orff Schulwerk.