======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '154'
                                          'artist'  'Alberto Beltrán'
                                     'text_people'  ''
                                         'release'  'Guarachas con La Sonora Matancera'
                                           'title'  'EL NEGRITO DEL BATEY'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['latin', 'vocal', 'usa', '60s', 'world']"
                                     'discogstags'  "['latin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'loc-islands-cuba'
                                             'bpm'  '134.466'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Guarachas con La Sonora Matancera'
'TBPM' (BPM (beats per minute))                     '134.466'
'TCON' (Content type, a.k.a. Genre)                 'loc-islands-cuba'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'EL NEGRITO DEL BATEY'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Alberto Beltrán'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'latin'
'TXXX:lastfmtags'                                   ['latin', 'vocal', 'usa', '60s', 'world']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                        '+2.61 dB'
'TXXX:replaygain_track_peak'                        '0.273257'

========================== row from database ==========================
                                              'id'  975534
                                            'path'  /data/Music/Bulk/00localcharacter/Guarachas con La Sonora Matancera/03. EL NEGRITO DEL BATEY (Alberto Beltrán).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  154
                                           'genre'  loc-islands-cuba
                                        'filesize'  3097706
                                           'mtime'  1659889183
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 03. (Alberto Beltrán) loc islands cuba
                                      'tag_artist'  Alberto Beltrán
                                     'tag_release'  Guarachas con La Sonora Matancera
                                       'tag_title'  EL NEGRITO DEL BATEY
                                             'bpm'  134.466
                                    'search_title'  'batey':4 'del':3 'el':1 'negrito':2
                                   'search_artist'  'alberto':1 'beltran':2,3
                                  'search_release'  'con':2 'guarachas':1 'la':3 'matancera':5 'sonora':4
                                     'search_rest'  '03':1,2 'alberto':3,4 'beltran':5,6,7,8 'cuba':11 'islands':10 'loc':9
                                    'search_combo'  '03':13,14 'alberto':5B,15,16 'batey':4A 'beltran':6B,7B,17,18,19,20 'con':9C 'cuba':23 'del':3A 'el':1A 'guarachas':8C 'islands':22 'la':10C 'loc':21 'matancera':12C 'negrito':2A 'sonora':11C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']
                                      'lastfmtags'  ['latin', 'vocal', 'usa', '60s', 'world']
                                        'tag_date'  1994
                                     'discogstags'  ['latin']

============================== file details ==============================
                                           'mtime'  1659889182.6779103  (2022-08-07 18:19:42)
                             'size'  3097706