======================== unified (from filesystem) ========================
                                         'bitrate'  '242.766'
                                        'duration'  '229'
                                          'artist'  'Disturbed'
                                     'text_people'  'Disturbed'
                                         'release'  'The Sickness'
                                           'title'  "Droppin' Plates"
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative', 'hard rock', 'metal', 'nu metal', 'rock']"
                                     'discogstags'  "['rock', 'hard rock', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '144'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Sickness'
'TBPM' (BPM (beats per minute))                     '144'
'TCOM' (Composer)                                   'Disturbed'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         "Droppin' Plates"
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Disturbed'
'TPE2' (Band/orchestra/accompaniment)               'Disturbed'
'TPUB' (Publisher)                                  'Giant'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'hard rock', 'heavy metal']
'TXXX:lastfmtags'                                   ['alternative', 'hard rock', 'metal', 'nu metal', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.86 dB'
'TXXX:replaygain_track_peak'                        '0.363589'

========================== row from database ==========================
                                              'id'  1520995
                                            'path'  /data/Music/Bulk/00dwimp/Disturbed/The Sickness/Disturbed-Droppin_ Plates.mp3
                                         'working'  None
                                         'bitrate'  242
                                    'duration_sec'  229
                                           'genre'  eid-metal-nu
                                        'filesize'  6961782
                                           'mtime'  1620311091
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp Droppin_ eid metal nu
                                      'tag_artist'  Disturbed
                                     'tag_release'  The Sickness
                                       'tag_title'  Droppin' Plates
                                             'bpm'  144.0
                                    'search_title'  'droppin':1,2 'plates':3
                                   'search_artist'  'disturbed':1
                                  'search_release'  'sickness':2 'the':1
                                     'search_rest'  '00dwimp':1 'droppin':2 'eid':3 'metal':4 'nu':5
                                    'search_combo'  '00dwimp':7 'disturbed':4B 'droppin':1A,2A,8 'eid':9 'metal':10 'nu':11 'plates':3A 'sickness':6C 'the':5C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['alternative', 'hard rock', 'metal', 'nu metal', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['rock', 'hard rock', 'heavy metal']

============================== file details ==============================
                                           'mtime'  1620311090.7285728  (2021-05-06 16:24:50)
                             'size'  6961782