======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '162'
                                          'artist'  'Trio Los Panchos'
                                     'text_people'  ''
                                         'release'  '20 Super  Sucessos'
                                           'title'  'Esperame en el cielo'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['latino americain', 'latin', 'mexico', 'bolero']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-samerica-mexico'
                                             'bpm'  '103.3'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'TALB' (Album/Movie/Show title)                     '20 Super  Sucessos'
'TBPM' (BPM (beats per minute))                     '103.3'
'TCON' (Content type, a.k.a. Genre)                 'loc-samerica-mexico'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Esperame en el cielo'
'TKEY' (Initial key)                                '12B'
'TLEN' (Length)                                     '162769'
'TPE1' (Lead performer(s)/Soloist(s))               'Trio Los Panchos'
'TRCK' (Track number/Position in set)               '17'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['latino americain', 'latin', 'mexico', 'bolero']
'TXXX:q-bass'                                       '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.55 dB'
'TXXX:replaygain_track_peak'                        '0.611117'

========================== row from database ==========================
                                              'id'  728541
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Trio Los Panchos - 20 Super Sucessos/Trio Los Panchos - Esperame en el cielo.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  162
                                           'genre'  loc-samerica-mexico
                                        'filesize'  2606352
                                           'mtime'  1621626205
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm loc samerica mexico
                                      'tag_artist'  Trio Los Panchos
                                     'tag_release'  20 Super  Sucessos
                                       'tag_title'  Esperame en el cielo
                                             'bpm'  103.3
                                    'search_title'  'cielo':4 'el':3 'en':2 'esperame':1
                                   'search_artist'  'los':2 'panchos':3 'trio':1
                                  'search_release'  '20':1 'sucessos':3 'super':2
                                     'search_rest'  'loc':1 'mexico':3 'samerica':2
                                    'search_combo'  '20':8C 'cielo':4A 'el':3A 'en':2A 'esperame':1A 'loc':11 'los':6B 'mexico':13 'panchos':7B 'samerica':12 'sucessos':10C 'super':9C 'trio':5B
                                    'tag_tracknum'  17
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['latino americain', 'latin', 'mexico', 'bolero']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621626204.7756026  (2021-05-21 21:43:24)
                             'size'  2606352