======================== unified (from filesystem) ========================
                                         'bitrate'  '242.616'
                                        'duration'  '270'
                                          'artist'  'Pogo Ltd'
                                     'text_people'  ''
                                         'release'  'Lagos Disco Inferno'
                                           'title'  "Don't Put Me Down"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-JZFKS-3', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['funk', 'all', 'african', 'everything']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'loc-africa-nigeria'
                                             'bpm'  '135.7'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Lagos Disco Inferno'
'TBPM' (BPM (beats per minute))                     '135.7'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa-nigeria'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         "Don't Put Me Down"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pogo Ltd'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Academy LPs'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['funk', 'all', 'african', 'everything']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.34 dB'
'TXXX:replaygain_track_peak'                        '0.598888'

========================== row from database ==========================
                                              'id'  1518134
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Lagos Disco Inferno/04 Don_t Put Me Down.mp3
                                         'working'  None
                                         'bitrate'  242
                                    'duration_sec'  270
                                           'genre'  loc-africa-nigeria
                                        'filesize'  9631511
                                           'mtime'  1621628810
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 04 Don_t loc africa nigeria
                                      'tag_artist'  Pogo Ltd
                                     'tag_release'  Lagos Disco Inferno
                                       'tag_title'  Don't Put Me Down
                                             'bpm'  135.7
                                    'search_title'  'don':1 'dont':3 'down':6 'me':5 'put':4 't':2
                                   'search_artist'  'ltd':2 'pogo':1
                                  'search_release'  'disco':2 'inferno':3 'lagos':1
                                     'search_rest'  'africa':4 'don':1 'loc':3 'nigeria':5 't':2
                                    'search_combo'  'africa':15 'disco':10C 'don':1A,12 'dont':3A 'down':6A 'inferno':11C 'lagos':9C 'loc':14 'ltd':8B 'me':5A 'nigeria':16 'pogo':7B 'put':4A 't':2A,13
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk', 'all', 'african', 'everything']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628809.8663955  (2021-05-21 22:26:49)
                             'size'  9631511