======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '137'
                                          'artist'  'Limp Bizkit'
                                     'text_people'  ''
                                         'release'  'Gold Cobra'
                                           'title'  'Bring It Back'
                                           '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-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative', 'rapcore', 'metal', 'nu metal', 'rock']"
                                     'discogstags'  "['hip hop', 'rock', 'nu metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '144.028'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Gold Cobra'
'TBPM' (BPM (beats per minute))                     '144.028'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Bring It Back'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Limp Bizkit'
'TPE2' (Band/orchestra/accompaniment)               'Limp Bizkit'
'TPUB' (Publisher)                                  'Interscope (Universal)'
'TRCK' (Track number/Position in set)               '02'
'TSO2'                                              'Limp Bizkit'
'TSOA' (Album sort order)                           'Gold Cobra'
'TSOP' (Performer sort order)                       'Limp Bizkit'
'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'                                  ['hip hop', 'rock', 'nu metal']
'TXXX:lastfmtags'                                   ['alternative', 'rapcore', 'metal', 'nu metal', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.42 dB'
'TXXX:replaygain_track_peak'                        '0.315866'

========================== row from database ==========================
                                              'id'  1314951
                                            'path'  /data/Music/Bulk/00poprockelectronic/Limp Bizkit/Gold Cobra/02 - Bring It Back.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  137
                                           'genre'  eid-metal-nu
                                        'filesize'  5596688
                                           'mtime'  1620311118
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 02 eid metal nu
                                      'tag_artist'  Limp Bizkit
                                     'tag_release'  Gold Cobra
                                       'tag_title'  Bring It Back
                                             'bpm'  144.028
                                    'search_title'  'back':3 'bring':1 'it':2
                                   'search_artist'  'bizkit':2 'limp':1
                                  'search_release'  'cobra':2 'gold':1
                                     'search_rest'  '00poprockelectronic':1 'eid':2 'metal':3 'nu':4
                                    'search_combo'  '00poprockelectronic':8 'back':3A 'bizkit':5B 'bring':1A 'cobra':7C 'eid':9 'gold':6C 'it':2A 'limp':4B 'metal':10 'nu':11
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['alternative', 'rapcore', 'metal', 'nu metal', 'rock']
                                        'tag_date'  2011
                                     'discogstags'  ['hip hop', 'rock', 'nu metal']

============================== file details ==============================
                                           'mtime'  1620311117.9618776  (2021-05-06 16:25:17)
                             'size'  5596688