======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '251'
                                          'artist'  'Los Kjarkas'
                                     'text_people'  ''
                                         'release'  'En Vivo Desde Europa'
                                           'title'  'Por Un Mundo Nuevo'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['latin', 'bolivia', 'musica andina', 'andina', 'folk']"
                                     'discogstags'  "['folk', 'latin', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'loc-samerica-bolivia'
                                             'bpm'  '92.8'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'En Vivo Desde Europa'
'TBPM' (BPM (beats per minute))                     '92.8'
'TCON' (Content type, a.k.a. Genre)                 'loc-samerica-bolivia'
'TDRC' (Recording time)                             '1980'
'TIT1' (Content group description)                  'Folklore'
'TIT2' (Title/songname/content description)         'Por Un Mundo Nuevo'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Kjarkas'
'TRCK' (Track number/Position in set)               '09'
'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:discogstags'                                  ['folk', 'latin', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['latin', 'bolivia', 'musica andina', 'andina', 'folk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.56 dB'
'TXXX:replaygain_track_peak'                        '0.592045'

========================== row from database ==========================
                                              'id'  1245105
                                            'path'  /data/Music/Bulk/00localcharacter/Los Kjarkas - 1980 - En Vivo Desde Europa/09_por_un_mundo_nuevo.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  251
                                           'genre'  loc-samerica-bolivia
                                        'filesize'  4030464
                                           'mtime'  1621629737
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 1980 09_por_un_mundo_nuevo loc samerica bolivia
                                      'tag_artist'  Los Kjarkas
                                     'tag_release'  En Vivo Desde Europa
                                       'tag_title'  Por Un Mundo Nuevo
                                             'bpm'  92.8
                                    'search_title'  'mundo':3 'nuevo':4 'por':1 'un':2
                                   'search_artist'  'kjarkas':2 'los':1
                                  'search_release'  'desde':3 'en':1 'europa':4 'vivo':2
                                     'search_rest'  '09':2 '1980':1 'bolivia':9 'loc':7 'mundo':5 'nuevo':6 'por':3 'samerica':8 'un':4
                                    'search_combo'  '09':12 '1980':11 'bolivia':19 'desde':9C 'en':7C 'europa':10C 'kjarkas':6B 'loc':17 'los':5B 'mundo':3A,15 'nuevo':4A,16 'por':1A,13 'samerica':18 'un':2A,14 'vivo':8C
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['latin', 'bolivia', 'musica andina', 'andina', 'folk']
                                        'tag_date'  1980
                                     'discogstags'  ['folk', 'latin', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621629737.32024  (2021-05-21 22:42:17)
                             'size'  4030464