Daniel Leeson is a 30-year veteran of the IBM Corporation, a professional performing musician for much of his life, one of the editors of the Neue Mozart Ausgabe 120 volumes of Mozart'ss music, and, following retirement from his business career, a teacher of college-level mathematics.

A former officer of the Mozart Society of America, he is also an award winning writer of nonfiction, the author of more than 100 technical articles, the co-author or co-editor of five books, and a published fiction writer.