Halbreich's interest in modern music has led to articles on composers including contemporary music, particularly Spectral music: Horațiu Rădulescu, Iancu Dumitrescu, Ana-Maria Avram, Gérard Grisey and Tristan Murail.
Harry Potter | Harry S. Truman | Harry Belafonte | Harry Turtledove | Debbie Harry | Harry Reid | Harry Nilsson | Prince Harry | Harry Houdini | Harry Hill | Harry | Harry Chapin | Harry Secombe | Harry Potter and the Half-Blood Prince | Harry Bridges | Harry James | Harry Connick, Jr. | Harry Redknapp | Harry Morgan | Harry Langdon | Harry Hopkins | Dirty Harry | Harry Saltzman | Harry Partch | Harry Potter (film series) | Harry Potter and the Deathly Hallows – Part 1 | Harry Potter and the Deathly Hallows | Harry Lauder | Harry Potter and the Order of the Phoenix | Harry Blackmun |