Musica con fisarmonica
Azzurro (Blue, Azure) is an Italian pop song composed by Paolo Conte and Michele Virano. Its most famous version was recorded by Adriano Celentano in 1968 (Wikipedia).
German covers were done by Peter Rubin, Dieter Thomas Kuhn, Die Toten Hosen (album Auf dem Kreuzzug ins Glück) and Peter Alexander.
In Israel, it is a famous song known for its Hebrew version by Arik Einstein “Amru Lo (אמרו לו)” (Hebrew: “They told him…”).