======================== unified (from filesystem) ========================
                                         'bitrate'  '174.044'
                                        'duration'  '112'
                                          'artist'  'Cypress Hill'
                                     'text_people'  ''
                                         'release'  'Los Grandes Exitos en Espaqol'
                                           'title'  'Tres Equis'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['alternative', 'rapcore', 'hip hop', 'rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '14'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '103.167'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000081D 0000080C 0000515C'
'COMM:iTunNORM:eng'                                 (' 0000081D 0000080C 0000515C 000056CE 00006CC6 00006CC6 00007A9D 00007ADD '
 '00005F34 00005F34')
'COMM:iTunes_CDDB_IDs:eng'                          '14+8B667FDB276615520A64A4799A16BF65+799190'
'TALB' (Album/Movie/Show title)                     'Los Grandes Exitos en Espaqol'
'TBPM' (BPM (beats per minute))                     '103.167'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '1999'
'TENC' (Encoded by)                                 'iTunes v3.0.1'
'TIT2' (Title/songname/content description)         'Tres Equis'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cypress Hill'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '13/14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative', 'rapcore', 'hip hop', 'rap']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.54 dB'
'TXXX:replaygain_track_peak'                        '0.588637'

========================== row from database ==========================
                                              'id'  1256809
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Cypress Hill/Cypress Hill in espa_ol/Los Grandes Exitos en Espa_ol/13 Tres Equis.mp3
                                         'working'  None
                                         'bitrate'  174
                                    'duration_sec'  112
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  2456569
                                           'mtime'  1620587045
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism in espa_ol Espa_ol 13 hip hop or rnb or rap or turntablism
                                      'tag_artist'  Cypress Hill
                                     'tag_release'  Los Grandes Exitos en Espaqol
                                       'tag_title'  Tres Equis
                                             'bpm'  103.167
                                    'search_title'  'equis':2 'tres':1
                                   'search_artist'  'cypress':1 'hill':2
                                  'search_release'  'en':4 'espaqol':5 'exitos':3 'grandes':2 'los':1
                                     'search_rest'  'espa':6 'hip':8 'hiphop':1 'hop':9 'in':5 'ol':7 'or':10 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  'cypress':3B 'en':8C 'equis':2A 'espa':15 'espaqol':9C 'exitos':7C 'grandes':6C 'hill':4B 'hip':17 'hiphop':10 'hop':18 'in':14 'los':5C 'ol':16 'or':19 'rap':11 'rnb':12 'tres':1A 'turntablism':13
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['alternative', 'rapcore', 'hip hop', 'rap']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620587045.4867759  (2021-05-09 21:04:05)
                             'size'  2456569