======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '172'
                                          'artist'  'Emile vacher'
                                     'text_people'  ''
                                         'release'  'Unknown French Album (cd3)'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['french', 'accordion', 'accordeon', '1204fh', '-j512fh']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '88.476'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Unknown French Album (cd3)'
'TBPM' (BPM (beats per minute))                     '88.476'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '1995'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Emile vacher'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '057,206'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:Tracknum'                                     '08La reine java'
'TXXX:lastfmtags'                                   ['french', 'accordion', 'accordeon', '1204fh', '-j512fh']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.61 dB'
'TXXX:replaygain_track_peak'                        '0.328155'

========================== row from database ==========================
                                              'id'  933438
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00french/Unknown French album (cd3)/08La reine java-Emile vacher.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  172
                                           'genre'  loc-eur-france
                                        'filesize'  2770207
                                           'mtime'  1620534682
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00french album 08La reine java loc eur france
                                      'tag_artist'  Emile vacher
                                     'tag_release'  Unknown French Album (cd3)
                                       'tag_title'  None
                                             'bpm'  88.476
                                    'search_title'  None
                                   'search_artist'  'emile':1 'vacher':2
                                  'search_release'  'album':3 'cd3':4,5 'french':2 'unknown':1
                                     'search_rest'  '00french':4 '00mid':1 '08la':6 'album':5 'eur':10 'europe':3 'france':11 'java':8 'loc':9 'north':2 'reine':7
                                    'search_combo'  '00french':11 '00mid':8 '08la':13 'album':5C,12 'cd3':6C,7C 'emile':1B 'eur':17 'europe':10 'france':18 'french':4C 'java':15 'loc':16 'north':9 'reine':14 'unknown':3C 'vacher':2B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-piano-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['french', 'accordion', 'accordeon', '1204fh', '-j512fh']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620534681.9116204  (2021-05-09 06:31:21)
                             'size'  2770207