======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '191'
                                          'artist'  'Rina Ketty'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Je N' Ai Qu' Une Maman"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalists', 'chanson', '30s', 'french']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-french'
                                             'bpm'  '143.2'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '143.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-french'
'TDRC' (Recording time)                             '1937'
'TIT2' (Title/songname/content description)         "Je N' Ai Qu' Une Maman"
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '191000'
'TPE1' (Lead performer(s)/Soloist(s))               'Rina Ketty'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['female vocalists', 'chanson', '30s', 'french']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.63 dB'
'TXXX:replaygain_track_peak'                        '0.453842'

========================== row from database ==========================
                                              'id'  1496683
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1937/Rina Ketty - Je N_ Ai Qu_ Une Maman 1937.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  191
                                           'genre'  prerock-french
                                        'filesize'  3915172
                                           'mtime'  1621627342
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1937 N_ Qu_ 1937 prerock french
                                      'tag_artist'  Rina Ketty
                                     'tag_release'  None
                                       'tag_title'  Je N' Ai Qu' Une Maman
                                             'bpm'  143.2
                                    'search_title'  'ai':4 'je':1 'maman':8 'n':2,3 'qu':5,6 'une':7
                                   'search_artist'  'ketty':2 'rina':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1937':6 'country':4 'exotica':2 'french':10 'jazz':1 'n':7 'oldies':3 'prerock':9 'qu':8
                                    'search_combo'  '00oldiepop':15 '1937':16 'ai':4A 'country':14 'exotica':12 'french':20 'jazz':11 'je':1A 'ketty':10B 'maman':8A 'n':2A,3A,17 'oldies':13 'prerock':19 'qu':5A,6A,18 'rina':9B 'une':7A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['female vocalists', 'chanson', '30s', 'french']
                                        'tag_date'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627342.2334301  (2021-05-21 22:02:22)
                             'size'  3915172