======================== unified (from filesystem) ========================
                                         'bitrate'  '246.136'
                                        'duration'  '358'
                                          'artist'  'Wilco'
                                     'text_people'  ''
                                         'release'  'Sky Blue Sky'
                                           'title'  'Impossible Germany'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'alt country', 'indie rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '105.040'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Sky Blue Sky'
'TBPM' (BPM (beats per minute))                     '105.040'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Impossible Germany'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Wilco'
'TPE2' (Band/orchestra/accompaniment)               'Wilco'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'alt country', 'indie rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.49 dB'
'TXXX:replaygain_track_peak'                        '0.360802'

========================== row from database ==========================
                                              'id'  367549
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Wilco/[2007] Sky Blue Sky/03 Impossible Germany.mp3
                                         'working'  None
                                         'bitrate'  246
                                    'duration_sec'  358
                                           'genre'  ifs-songwriter
                                        'filesize'  11085832
                                           'mtime'  1642256221
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos [2007] 03 ifs songwriter
                                      'tag_artist'  Wilco
                                     'tag_release'  Sky Blue Sky
                                       'tag_title'  Impossible Germany
                                             'bpm'  105.04
                                    'search_title'  'germany':2 'impossible':1
                                   'search_artist'  'wilco':1
                                  'search_release'  'blue':2 'sky':1
                                     'search_rest'  '00singer':1 '2007':4,5 'eos':3 'ifs':6 'songwriter':2
                                    'search_combo'  '00singer':6 '2007':9,10 'blue':5C 'eos':8 'germany':2A 'ifs':11 'impossible':1A 'sky':4C 'songwriter':7 'wilco':3B
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']
                                      'lastfmtags'  ['indie', 'alternative', 'alt country', 'indie rock', 'rock']
                                        'tag_date'  2007
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1642256220.6332996  (2022-01-15 15:17:00)
                             'size'  11085832