======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '197'
                                          'artist'  "Czardas d'amour"
                                     'text_people'  ''
                                         'release'  'Unknown French Album (cd3)'
                                           'title'  'Yvette Horner'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '120.399'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Unknown French Album (cd3)'
'TBPM' (BPM (beats per minute))                     '120.399'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Yvette Horner'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               "Czardas d'amour"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '055,209'
'TXXX:Mp3gain_undo'                                 '+001,+001,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'                                     '01'
'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'                        '+1.47 dB'
'TXXX:replaygain_track_peak'                        '0.822656'

========================== row from database ==========================
                                              'id'  1511682
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00french/Unknown French album (cd3)/01-Czardas d_amour-Yvette Horner.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  197
                                           'genre'  loc-eur-france
                                        'filesize'  3155169
                                           'mtime'  1620534645
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00french album 01 d_amour loc eur france
                                      'tag_artist'  Czardas d'amour
                                     'tag_release'  Unknown French Album (cd3)
                                       'tag_title'  Yvette Horner
                                             'bpm'  120.399
                                    'search_title'  'horner':2 'yvette':1
                                   'search_artist'  'amour':3 'czardas':1 'd':2 'damour':4
                                  'search_release'  'album':3 'cd3':4,5 'french':2 'unknown':1
                                     'search_rest'  '00french':4 '00mid':1 'album':5 'amour':7 'd':6 'eur':9 'europe':3 'france':10 'loc':8 'north':2
                                    'search_combo'  '00french':15 '00mid':12 'album':9C,16 'amour':5B,18 'cd3':10C,11C 'czardas':3B 'd':4B,17 'damour':6B 'eur':20 'europe':14 'france':21 'french':8C 'horner':2A 'loc':19 'north':13 'unknown':7C 'yvette':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620534645.4092665  (2021-05-09 06:30:45)
                             'size'  3155169