======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '130'
                                          'artist'  'Jorge Valdez-Roberto Mancini'
                                     'text_people'  ''
                                         'release'  'french tanguerooo'
                                           'title'  'Soqar Y Nada Mas'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '134.021'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'french tanguerooo'
'TBPM' (BPM (beats per minute))                     '134.021'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '1995'
'TENC' (Encoded by)                                 'FrenchTanguero'
'TIT2' (Title/songname/content description)         'Soqar Y Nada Mas'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Jorge Valdez-Roberto Mancini'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.47 dB'
'TXXX:replaygain_track_peak'                        '0.476961'

========================== row from database ==========================
                                              'id'  922719
                                            'path'  /data/Music/Bulk/00localcharacter/french tanguerooo/jorge valdez-roberto mancini - soñar y nada más.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  130
                                           'genre'  loc-eur-france
                                        'filesize'  2094008
                                           'mtime'  1620536270
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter jorge valdez roberto mancini soñar y nada más loc eur france
                                      'tag_artist'  Jorge Valdez-Roberto Mancini
                                     'tag_release'  french tanguerooo
                                       'tag_title'  Soqar Y Nada Mas
                                             'bpm'  134.021
                                    'search_title'  'mas':4 'nada':3 'soqar':1 'y':2
                                   'search_artist'  'jorge':1 'mancini':5 'roberto':3 'valdez':2 'valdezroberto':4
                                  'search_release'  'french':1 'tanguerooo':2
                                     'search_rest'  'eur':12 'france':13 'jorge':1 'loc':11 'mancini':4 'mas':9,10 'nada':8 'roberto':3 'sonar':5,6 'valdez':2 'y':7
                                    'search_combo'  'eur':23 'france':24 'french':10C 'jorge':5B,12 'loc':22 'mancini':9B,15 'mas':4A,20,21 'nada':3A,19 'roberto':7B,14 'sonar':16,17 'soqar':1A 'tanguerooo':11C 'valdez':6B,13 'valdezroberto':8B 'y':2A,18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536270.2260644  (2021-05-09 06:57:50)
                             'size'  2094008