As result of collaboration between Armenian National Opera and Ballet Theater, Cadence Music Centre and conductor Facundo Agudin in April 2006 Suren Mkrtchyan, one of the leading tenors of the Armenian National Opera, has participated in the production of Puccini's 'Messa di Gloria' under direction of maestro Agudin. The performances took place in Le Landeron (15 April), Moutier (16 April), Le Noirmont (21 April) and Porrentruy (22 and 23 April).