.spectral_centroid.mean&quot;
                                                 &quot;lowlevel.pitch.mean&quot;)))</code></pre> <p>Which prints:</p> <pre><code>Showing 3 results from a total of 943:

id:            442981
name:          Sol-G.m4a
analysis:      lowlevel:      spectral_cent: mean:          499.9333
                              pitch:         mean:          386.42862

id:            39210
name:          Piano ff 062.wav
analysis:      lowlevel:      spectral_cent: mean:          1047.3967
   