======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '179'
                                          'artist'  'Anomalie'
                                     'text_people'  ''
                                         'release'  'Unknown french album (cd4)'
                                           'title'  'Gus Viseur'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', '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'  "['post-black metal', 'screamo', 'black metal', 'german', 'hardcore']"
                                     'discogstags'  "['techno', 'electronic', 'progressive trance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '142.307'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Unknown french album (cd4)'
'TBPM' (BPM (beats per minute))                     '142.307'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Gus Viseur'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Anomalie'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '042,205'
'TXXX:Mp3gain_undo'                                 '+005,+005,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:Tracknum'                                     '01'
'TXXX:discogstags'                                  ['techno', 'electronic', 'progressive trance']
'TXXX:lastfmtags'                                   ['post-black metal', 'screamo', 'black metal', 'german', 'hardcore']
'TXXX:q-bass'                                       '4'
'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'                        '+4.34 dB'
'TXXX:replaygain_track_peak'                        '0.415862'

========================== row from database ==========================
                                              'id'  933341
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00french/Unknown french album (cd4)/01-Anomalie-Gus Viseur.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  179
                                           'genre'  loc-eur-france
                                        'filesize'  2871354
                                           'mtime'  1620534759
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00french 01 loc france
                                      'tag_artist'  Anomalie
                                     'tag_release'  Unknown french album (cd4)
                                       'tag_title'  Gus Viseur
                                             'bpm'  142.307
                                    'search_title'  'gus':1 'viseur':2
                                   'search_artist'  'anomalie':1
                                  'search_release'  'album':3 'cd4':4,5 'french':2 'unknown':1
                                     'search_rest'  '00french':4 '00mid':1 'europe':3 'france':6 'loc':5 'north':2
                                    'search_combo'  '00french':12 '00mid':9 'album':6C 'anomalie':3B 'cd4':7C,8C 'europe':11 'france':14 'french':5C 'gus':1A 'loc':13 'north':10 'unknown':4C 'viseur':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', '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-4', 'q-grit-2']
                                      'lastfmtags'  ['post-black metal', 'screamo', 'black metal', 'german', 'hardcore']
                                        'tag_date'  1995
                                     'discogstags'  ['techno', 'electronic', 'progressive trance']

============================== file details ==============================
                                           'mtime'  1620534759.4458969  (2021-05-09 06:32:39)
                             'size'  2871354