Walter studied at the Royal Conservatory in Brussels, where he graduated as a composer. He wrote works for a variety of line-ups and in 1999 his work 'Illusion of Time' was chosen as the only Belgian entry for the World Music Days in Romania. In the Netherlands, Walter studied conducting and was a conductor with several youth orchestras for many years.
After an initial career as a teacher at the Royal Conservatory in Brussels and a teacher of harmony in art education, he was asked in 1989 to take charge of the Academy for Music and Word Art Hoboken. His experiences as director allowed Walter to share a common pedagogical vision with Diane, resulting in AnnA.

List of available scores