In 2008 the Bulgarian violinist Albena Danailova became the first female concertmaster in the history of the Vienna State Opera and since September 2011 is also the first female musician elected to this position by the Vienna Philharmonic. As a soloist and chamber musician Albena Danailova makes regular guest appearances at festivals in Bulgaria, Austria, Germany, Israel and the United States, and has performed with orchestras including the Mozart Orchester Hamburg, NDR Sinfonieorchester, Kammerensemble Concertino, New Symphony Orchestra, Sofia Soloists, Sofia Philharmonic and others.