He has spent many years in Italian libraries and archives, uncovering not only neglected opera composers and their scores, but also collections of their letters and papers, contemporary accounts and reviews, thus building up an invaluable picture of their lives and productions. Among other forgotten works he has been instrumental in rediscovering, he has edited in collaboration with the Milanese conductor Daniele Ferrari the opera
Il convitato di pietra (1832), a version of the
Don Giovanni story written by the Italian composer
Giovanni Pacini. The work was given its first modern-day performance at the 2008
Rossini in Wildbad Festival. The work has been recorded by
Naxos Records. His first major scholarly work was the 1,652 page volume
The First Performances of the Operas of Donizetti, produced in collaboration with Annalisa Bini and published in Italian in 1997. On his own he subsequently published in 2008 a collection of more than 2000 letters he has transcribed and edited that were written by or to the composer Nicola Vaccaj, a contemporary of
Rossini and Donizetti, whose singing exercises are used by singers to this day. At various times during his career, he has been commissioned to write essays, introductions and notes by opera companies in various parts of the world including
Opera Australia, San Francisco and
English National Opera. He has worked with leading exponents of Italian opera such as
Dame Joan Sutherland and conductor
Richard Bonynge on articles to accompany their recordings for
Decca Records. Since 1975, he has been a researcher and writer for the London-based company
Opera Rara, which has issued award-winning recordings of neglected nineteenth-century Italian operas. == Opera productions ==