======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '145'
                                          'artist'  'Waldo De Los Rios'
                                     'text_people'  ''
                                         'release'  'En Europa'
                                           'title'  'De Dsnde Vienen Las Guitarras'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['instrumental', 'una furtiva lagrima', 'alltime favorites', 'latin', 'in "
 "the company of formidable women']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '134.914'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'En Europa'
'TBPM' (BPM (beats per minute))                     '134.914'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'De Dsnde Vienen Las Guitarras'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Waldo De Los Rios'
'TPE2' (Band/orchestra/accompaniment)               'Waldo De Los Rios'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental',
 'una furtiva lagrima',
 'alltime favorites',
 'latin',
 'in the company of formidable women']
'TXXX:q-bass'                                       '4'
'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'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.61 dB'
'TXXX:replaygain_track_peak'                        '0.633205'

========================== row from database ==========================
                                              'id'  477460
                                            'path'  /data/Music/Bulk/00localcharacter/Waldo De Los Rios - En Europa/07 - De Dónde Vienen Las Guitarras.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  145
                                           'genre'  loc-unsorted
                                        'filesize'  3498203
                                           'mtime'  1637330002
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 07 Dónde loc unsorted
                                      'tag_artist'  Waldo De Los Rios
                                     'tag_release'  En Europa
                                       'tag_title'  De Dsnde Vienen Las Guitarras
                                             'bpm'  134.914
                                    'search_title'  'de':1 'dsnde':2 'guitarras':5 'las':4 'vienen':3
                                   'search_artist'  'de':2 'los':3 'rios':4 'waldo':1
                                  'search_release'  'en':1 'europa':2
                                     'search_rest'  'donde':1,2 'loc':3 'unsorted':4
                                    'search_combo'  'de':1A,7B 'donde':12,13 'dsnde':2A 'en':10C 'europa':11C 'guitarras':5A 'las':4A 'loc':14 'los':8B 'rios':9B 'unsorted':15 'vienen':3A 'waldo':6B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', '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-2', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'una furtiva lagrima', 'alltime favorites', 'latin', 'in the company of formidable women']
                                        'tag_date'  1967
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330002.377462  (2021-11-19 14:53:22)
                             'size'  3498203