======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '167'
                                          'artist'  'April March'
                                     'text_people'  ''
                                         'release'  'Chick Habit'
                                           'title'  'La Chanson de Prevert'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'indie pop', 'female vocalists', 'pop', 'french']"
                                     'discogstags'  "['pop', 'chanson']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '145.790'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Chick Habit'
'TBPM' (BPM (beats per minute))                     '145.790'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'La Chanson de Prevert'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'April March'
'TRCK' (Track number/Position in set)               '5'
'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:discogstags'                                  ['pop', 'chanson']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'female vocalists', 'pop', 'french']
'TXXX:original release date'                        ['1995', '2012']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.32 dB'
'TXXX:replaygain_track_peak'                        '0.452119'

========================== row from database ==========================
                                              'id'  183780
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/April March/April March - La Chanson de Prevert.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  167
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  2680271
                                           'mtime'  1621630254
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos ifs songwriter eos
                                      'tag_artist'  April March
                                     'tag_release'  Chick Habit
                                       'tag_title'  La Chanson de Prevert
                                             'bpm'  145.79
                                    'search_title'  'chanson':2 'de':3 'la':1 'prevert':4
                                   'search_artist'  'april':1 'march':2
                                  'search_release'  'chick':1 'habit':2
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'songwriter':2
                                    'search_combo'  '00singer':9 'april':5B 'chanson':2A 'chick':7C 'de':3A 'eos':11 'habit':8C 'ifs':12 'la':1A 'march':6B 'prevert':4A 'songwriter':10
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'female vocalists', 'pop', 'french']
                                        'tag_date'  2012
                                     'discogstags'  ['pop', 'chanson']

============================== file details ==============================
                                           'mtime'  1621630254.2269952  (2021-05-21 22:50:54)
                             'size'  2680271