======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '214'
                                          'artist'  'Metric'
                                     'text_people'  ''
                                         'release'  'Fantasies'
                                           'title'  'Front Row'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'rock', 'female vocalists', 'indie rock', 'canadian']"
                                     'discogstags'  "['rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2019'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '87.4'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Fantasies'
'TBPM' (BPM (beats per minute))                     '87.4'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2019'
'TIT2' (Title/songname/content description)         'Front Row'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Metric'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'rock', 'female vocalists', 'indie rock', 'canadian']
'TXXX:original release date'                        ['2009', '2019']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.87 dB'
'TXXX:replaygain_track_peak'                        '0.378435'

========================== row from database ==========================
                                              'id'  1343513
                                            'path'  /data/Music/Bulk/00poprockelectronic/Metric/Fantasies/08-metric_-_front_row-(PRSHUN)-2009.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  214
                                           'genre'  rock-unsorted
                                        'filesize'  4306944
                                           'mtime'  1638551107
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 08 metric_ _front_row (PRSHUN) 2009 rock unsorted
                                      'tag_artist'  Metric
                                     'tag_release'  Fantasies
                                       'tag_title'  Front Row
                                             'bpm'  87.4
                                    'search_title'  'front':1 'row':2
                                   'search_artist'  'metric':1
                                  'search_release'  'fantasies':1
                                     'search_rest'  '00poprockelectronic':1 '2009':7 'front':3 'metric':2 'prshun':5,6 'rock':8 'row':4 'unsorted':9
                                    'search_combo'  '00poprockelectronic':5 '2009':11 'fantasies':4C 'front':1A,7 'metric':3B,6 'prshun':9,10 'rock':12 'row':2A,8 'unsorted':13
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'rock', 'female vocalists', 'indie rock', 'canadian']
                                        'tag_date'  2019
                                     'discogstags'  ['rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1638551106.5790193  (2021-12-03 18:05:06)
                             'size'  4306944