Letters of recommendation
Dr. Kenneth Slowik, The Smithsonian Institute, Washington, D.C.
Joseph Peknik III, The Metropolitan Museum, New York
Timothy Ingles, Sotheby's Auction House, London
John Pringle, violin and viola da gamba maker and expert, Cambridge, U.K. and North Carloina
Jean Michel Mercurol, Regisseur, France TV - 2
Claudine Salomon-Moutot, Festival director of Les Festes de Thalie, Thoiry, France
Ramón Taboada, Consell d'Eivissa (Ibiza, Spain)
Fernando Jaime Manuel Ribas, Director of the Conservatory of Ibiza
Principe Carlo Alessandro di Torre e Tasso, Castello di Duino, Italy
Beat Merz, Innovantiqua, Winterthur
Riccardo Chailly, Principal director of the Concertgebouw Orchestra, Amsterdam
Günter Jena, Director of the St. Michaelis Chor, Hamburg
Florian Heyerick, Director of Ex tempore, Gent, Belgium