media to digital media. The \gls{IFPI} stated that about $43\%$ of music
revenue arises from digital distribution. Another $39\%$ arises from the
physical sale and the remaining $16\%$ is made through performance and
-synchronisation revenieus. The overtake of digital formats on physical formats
+synchronisation reveneus. The overtake of digital formats on physical formats
took place somewhere in 2015. Moreover, ever since twenty years the music
industry has seen significant growth
again\footnote{\url{http://www.ifpi.org/facts-and-stats.php}}.