======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '256'
                                          'artist'  'The Scorpions'
                                     'text_people'  ''
                                         'release'  "80's Rock"
                                           'title'  'Rocking Like A Hurricane'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['hard rock', '80s', 'classic rock', 'metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '125.470'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'COMM:ID3v1 Comment:XXX'                            ' 00001D51 00001C65 000190BA 00'
'COMM:iTunNORM:eng'                                 (' 00001D51 00001C65 000190BA 00013F9F 0000B894 0000B894 00008000 00008000 '
 '0000133A 0000133A')
'PRIV:AverageLevel:Û\x1c\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xdb\x1c\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
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'TALB' (Album/Movie/Show title)                     "80's Rock"
'TBPM' (BPM (beats per minute))                     '125.470'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Rocking Like A Hurricane'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Scorpions'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['hard rock', '80s', 'classic rock', 'metal', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.13 dB'
'TXXX:replaygain_track_peak'                        '0.430253'

========================== row from database ==========================
                                              'id'  1291999
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/the scorpions - rocking like a hurricane.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  256
                                           'genre'  rock-unsorted
                                        'filesize'  4104034
                                           'mtime'  1620392412
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] the scorpions rocking like hurricane rock unsorted
                                      'tag_artist'  The Scorpions
                                     'tag_release'  80's Rock
                                       'tag_title'  Rocking Like A Hurricane
                                             'bpm'  125.47
                                    'search_title'  'a':3 'hurricane':4 'like':2 'rocking':1
                                   'search_artist'  'scorpions':2 'the':1
                                  'search_release'  '80':1 '80s':3 'rock':4 's':2
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'hurricane':11 'like':10 'loose':3,4 'rock':12 'rocking':9 'scorpions':8 'the':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':11 '80':7C '80s':9C 'a':3A 'files':15,16 'hurricane':4A,21 'like':2A,20 'loose':13,14 'rock':10C,22 'rocking':1A,19 's':8C 'scorpions':6B,18 'the':5B,17 'unsorted':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['hard rock', '80s', 'classic rock', 'metal', 'rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392412.2759426  (2021-05-07 15:00:12)
                             'size'  4104034