With a voice Leonard Cohen described as "strong, clear, simple and true", Nana Mouskouri applied classical technique to popular songs in 15 languages over several decades. She released her first track in 1957 and eventually sold more than 300 million albums. Amid dramatic arrangements, heavenly choirs and the occasional folk instrument, Mouskouri's pure, innocent tones elicit tearful nostalgia whether she is singing folk songs from her native Greece, American spirituals, French chanson, Spanish boleros, or Bob Dylan.