  Several pieces of different musical kinds were studied measuring $N(A)$, the
output amplitude of a peak detector driven by the electric signal arriving to
the loudspeaker. Fixed a suitable threshold $\bar{A}$, we considered $N(A)$,
the number of times that $A(t)>\bar{A}$, each of them we named event and
$N(t)$, the distribution of times $t$ between two consecutive events. Some
$N(A)$ and $N(t)$ distributions are displayed in the reported logarithmic
plots, showing that jazz, pop, rock and other popular rhythms have
noise-distribution, while classical pieces of music are characterized by more
complex statistics. We pointed out the extraordinary case of the aria
``\textit{La calunnia \`{e} un venticello}'', where the words describe an
avalanche or seismic process, calumny, and the rossinian music shows $N(A)$ and
$N(t)$ distribution typical of earthquakes.
