======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '167'
                                          'artist'  'Jacques Brel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Les Bergers'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['belgian', 'chanson', 'chanson francaise', 'french', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '87.558'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x005\x00+\x00B\x007\x00+\x003\x000\x00A\x00F\x00+\x006\x00B\x009\x007\x00+\x009\x00A\x008\x003\x00+\x00D\x004\x00F\x006\x00+\x001\x000\x004\x00E\x00E\x00+\x001\x003\x008\x004\x00C\x00+\x001\x006\x007\x00B\x00F\x00+\x001\x00B\x003\x00B\x004\x00+\x001\x00E\x008\x00E\x006\x00+\x002\x001\x00B\x004\x00C\x00+\x002\x005\x00D\x000\x000\x00+\x002\x008\x00C\x00D\x000\x00+\x002\x00D\x005\x002\x006\x00+\x003\x000\x006\x00D\x00D\x00+\x003\x003\x000\x006\x008\x00+\x003\x006\x00D\x006\x00F\x00+\x003\x00A\x002\x000\x003\x00+\x003\x00E\x00A\x005\x00D\x00+\x004\x003\x002\x002\x00E\x00+\x004\x006\x003\x002\x00D\x00+\x004\x00A\x000\x00B\x000\x00\x00\x00')
'TBPM' (BPM (beats per minute))                     '87.558'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TIT2' (Title/songname/content description)         'Les Bergers'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jacques Brel'
'TRCK' (Track number/Position in set)               '20'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['belgian', 'chanson', 'chanson francaise', 'french', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.10 dB'
'TXXX:replaygain_track_peak'                        '0.818790'

========================== row from database ==========================
                                              'id'  1270290
                                            'path'  /data/Music/Bulk/00localcharacter/Jacques Brel/Jacques Brel - Les Bergers.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  167
                                           'genre'  loc-eur-france
                                        'filesize'  4021187
                                           'mtime'  1620535959
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter loc eur france
                                      'tag_artist'  Jacques Brel
                                     'tag_release'  None
                                       'tag_title'  Les Bergers
                                             'bpm'  87.558
                                    'search_title'  'bergers':2 'les':1
                                   'search_artist'  'brel':2 'jacques':1
                                  'search_release'  
                                     'search_rest'  'eur':2 'france':3 'loc':1
                                    'search_combo'  'bergers':2A 'brel':4B 'eur':6 'france':7 'jacques':3B 'les':1A 'loc':5
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['belgian', 'chanson', 'chanson francaise', 'french', 'singer songwriter']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620535958.9915192  (2021-05-09 06:52:38)
                             'size'  4021187