<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '187.445'
                                        'duration'  '61'
                                          'artist'  'Emilie Autumn'
                                     'text_people'  ''
                                         'release'  'Opheliac, Ltd. Deluxe Edition'
                                           'title'  'Poem: How to break a heart'
                                           'quals'  "['q-bass-4', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-2']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'Industrial'
                                             'bpm'  '124.4'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9542b8f1f0>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1538574"/>
'COMM::eng'                                         'Lb:Trisol C:TRI282'
'TALB' (Album/Movie/Show title)                     'Opheliac, Ltd. Deluxe Edition'
'TBPM' (BPM (beats per minute))                     '124.4'
'TCON' (Content type, a.k.a. Genre)                 'Industrial'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'Lame 3.90.3'
'TIT2' (Title/songname/content description)         'Poem: How to break a heart'
'TKEY' (Initial key)                                '10A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Emilie Autumn'
'TPE2' (Band/orchestra/accompaniment)               'Emilie Autumn'
'TPUB' (Publisher)                                  'Trisol (Soulfood Music)'
'TRCK' (Track number/Position in set)               '18'
'TXXX:MusicMagic Data'                              'AgEBU3AZllKMqRDXgAE0PDrsgAGAPIACoqSVDkOhgAGyrLM0gAGjFdUwgAH7G4SfgiqAAZccgBz/ToABgAGry/R9/hiJ/pQhgAKAAaeEnW3GlYP0A2BAiY8lgkiHwPYboF41to5T62uJJot8AI21sq6n1RKgwoUxh1LfVpye6/fHeYLAykMGWvDJsLrB0YIDgAE='
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'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
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========================== row from database ==========================
                                              'id'  1538574
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/Emilie Autumn/Poem - How to break a heart.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  61
                                           'genre'  Industrial
                                        'filesize'  1517086
                                           'mtime'  1662800110
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1] Industrial
                                      'tag_artist'  Emilie Autumn
                                     'tag_release'  Opheliac, Ltd. Deluxe Edition
                                       'tag_title'  Poem: How to break a heart
                                             'bpm'  124.4
                                    'search_title'  'a':6 'break':5 'heart':7 'how':3 'poem':1,2 'to':4
                                   'search_artist'  'autumn':2 'emilie':1
                                  'search_release'  'deluxe':5 'edition':6 'ltd':3,4 'opheliac':1,2
                                     'search_rest'  '0yay1':2,3 'industrial':4 'prev':5 'prevset':1 'set':6
                                    'search_combo'  '0yay1':17,18 'a':6A 'autumn':9B 'break':5A 'deluxe':14C 'edition':15C 'emilie':8B 'heart':7A 'how':3A 'industrial':19 'ltd':12C,13C 'opheliac':10C,11C 'poem':1A,2A 'prev':20 'prevset':16 'set':21 'to':4A
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['q-bass-4', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  []
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800110.015064  (2022-09-10 10:55:10)
                             'size'  1517086