======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '260'
                                          'artist'  'Georges Brassens'
                                     'text_people'  ''
                                         'release'  "Live in Great Britain Live '73"
                                           'title'  'La non-demande en mariage'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['chanson', 'francais', 'chanson francaise', 'french', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '145.685'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Live in Great Britain Live '73"
'TBPM' (BPM (beats per minute))                     '145.685'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'La non-demande en mariage'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Georges Brassens'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['chanson', 'francais', 'chanson francaise', 'french', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.73 dB'
'TXXX:replaygain_track_peak'                        '0.936848'

========================== row from database ==========================
                                              'id'  1400298
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/Georges Brassens/Live in Great Britain/georges brassens - 13 - la non-demande en mariage.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  260
                                           'genre'  loc-eur-france
                                        'filesize'  4175872
                                           'mtime'  1620535274
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe georges brassens 13 la loc eur france
                                      'tag_artist'  Georges Brassens
                                     'tag_release'  Live in Great Britain Live '73
                                       'tag_title'  La non-demande en mariage
                                             'bpm'  145.685
                                    'search_title'  'demande':3 'en':5 'la':1 'mariage':6 'non':2 'nondemande':4
                                   'search_artist'  'brassens':2 'georges':1
                                  'search_release'  '73':5,6 'britain':4 'great':3 'in':2 'live':1
                                     'search_rest'  '00mid':1 'brassens':5 'eur':8 'europe':3 'france':9 'georges':4 'la':6 'loc':7 'north':2
                                    'search_combo'  '00mid':15 '73':13C,14C 'brassens':8B,19 'britain':12C 'demande':3A 'en':5A 'eur':22 'europe':17 'france':23 'georges':7B,18 'great':11C 'in':10C 'la':1A,20 'live':9C 'loc':21 'mariage':6A 'non':2A 'nondemande':4A 'north':16
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['chanson', 'francais', 'chanson francaise', 'french', 'singer songwriter']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620535274.4128196  (2021-05-09 06:41:14)
                             'size'  4175872