  In this work we perform a fractal analysis of 160 pieces of music belonging
to six different genres. We show that the majority of the pieces reveal
characteristics that allow us to classify them as physical processes called the
1/f (pink) noise. However, this is not true for classical music represented
here by Frederic Chopin's works and for some jazz pieces that are much more
correlated than the pink noise. We also perform a multifractal (MFDFA) analysis
of these music pieces. We show that all the pieces reveal multifractal
properties. The richest multifractal structures are observed for pop and rock
music. Also the viariably of multifractal features is best visible for popular
music genres. This can suggest that, from the multifractal perspective,
classical and jazz music is much more uniform than pieces of the most popular
genres of music.
