Following his work at the Staatstheater Braunschweig, Alber became known for his guest conducting appearances with leading orchestras and opera companies in Europe, Africa, Asia and Australasia, and at prestigious music festivals.

Since then, his guest conducting appearances have included many performances in Japan, in France and in North-America.

He also made guest conducting appearances with several European orchestras, including the Salzburg Mozarteum Orchestra, the Prague Symphony, the Solisti di Roma and the English Chamber Orchestra.

Guest conducting appearances, visiting faculty affiliations, etc., do not appear.

Mr. Domingo's extraordinary loyalty to the Met has included over 550 singing performances, 39 roles, conducting appearances in six operas, and 17 opening nights.

Other guest conducting appearances in the US have been with the Philadelphia Orchestra and the Saint Louis Symphony Orchestra.

Conspicuously absent from his resume are conducting appearances at the New York Philharmonic, where he was co-principal trumpeter from 1972 to 1975.

Since his departure from Philadelphia, he has made very few guest conducting appearances with the Philadelphia Orchestra, most recently in 2005.

In 1990 and 1991 he made two subsequent guest conducting appearances with that ensemble in Flaine and at the famed Salle Geveau in Paris.

Mr. Gilad's guest conducting appearances have brought him praise in the United States and throughout Europe.