======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '791'
                                          'artist'  'Fela Kuti'
                                     'text_people'  ''
                                         'release'  'Expensive Shit / He Miss Road'
                                           'title'  'Expensive Shit'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-JZFKS-3', "
 "'Q-LOCALNESS-3', 'Q-PLAY-2', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-4', 'q-other-3', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dommages collateraux', 'maria farantouri']"
                                     'discogstags'  "['funk / soul', 'afrobeat']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  '05'
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'loc-africa-nigeria'
                                             'bpm'  '123.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 000007F8 00000000 00008E78 00000000 0004E200 00000000 00008000 00000000 '
 '0002230E 00000000')
'TALB' (Album/Movie/Show title)                     'Expensive Shit / He Miss Road'
'TBPM' (BPM (beats per minute))                     '123.4'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa-nigeria'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Expensive Shit'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fela Kuti'
'TPE2' (Band/orchestra/accompaniment)               'Fela Kuti'
'TRCK' (Track number/Position in set)               '01/05'
'TSO2'                                              'Kuti, Fela'
'TSOP' (Performer sort order)                       'Kuti, Fela'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['funk / soul', 'afrobeat']
'TXXX:lastfmtags'                                   ['dommages collateraux', 'maria farantouri']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.19 dB'
'TXXX:replaygain_track_peak'                        '0.496086'

========================== row from database ==========================
                                              'id'  1476953
                                            'path'  /data/Music/Bulk/00localcharacter/00africa/Fela Kuti/1975 - Expensive Shit - He Miss Road/01 - Expensive Shit.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  791
                                           'genre'  loc-africa-nigeria
                                        'filesize'  12673952
                                           'mtime'  1621629083
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00africa 1975 01 loc africa nigeria
                                      'tag_artist'  Fela Kuti
                                     'tag_release'  Expensive Shit / He Miss Road
                                       'tag_title'  Expensive Shit
                                             'bpm'  123.4
                                    'search_title'  'expensive':1 'shit':2
                                   'search_artist'  'fela':1 'kuti':2
                                  'search_release'  'expensive':1 'he':3 'miss':4 'road':5 'shit':2
                                     'search_rest'  '00africa':1 '1975':2 'africa':4 'loc':3 'nigeria':5
                                    'search_combo'  '00africa':10 '1975':11 'africa':13 'expensive':1A,5C 'fela':3B 'he':7C 'kuti':4B 'loc':12 'miss':8C 'nigeria':14 'road':9C 'shit':2A,6C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dommages collateraux', 'maria farantouri']
                                        'tag_date'  1975
                                     'discogstags'  ['funk / soul', 'afrobeat']

============================== file details ==============================
                                           'mtime'  1621629083.3642979  (2021-05-21 22:31:23)
                             'size'  12673952