======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '190'
                                          'artist'  'Lhasa'
                                     'text_people'  'Argentina/Ginastera-Silva Valdez/Ricordi/Silva Valdes'
                                         'release'  'La Llorona'
                                           'title'  'El arbol del olvido'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['world', 'latin', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '11'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '145.267'
                                             'key'  '7A'
                                        'acoustid'  'e0c64e37-22f0-49c5-a7b7-5f7a28ea4aab'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'La Llorona'
'TBPM' (BPM (beats per minute))                     '145.267'
'TCOM' (Composer)                                   'Argentina/Ginastera-Silva Valdez/Ricordi/Silva Valdes'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '2004-07-21'
'TIT2' (Title/songname/content description)         'El arbol del olvido'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Lhasa'
'TPE2' (Band/orchestra/accompaniment)               'Lhasa'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Audiogram'
'TRCK' (Track number/Position in set)               '11/11'
'TSO2'                                              'Lhasa'
'TSOP' (Performer sort order)                       'Lhasa'
'TXXX:Acoustid Id'                                  'e0c64e37-22f0-49c5-a7b7-5f7a28ea4aab'
'TXXX:MusicBrainz Album Artist Id'                  '95db1c7c-21b8-4956-82ad-20217cd5d395'
'TXXX:MusicBrainz Album Id'                         '1963aa8d-619d-4b35-bd90-69fc68d95837'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '95db1c7c-21b8-4956-82ad-20217cd5d395'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['world', 'latin', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.89 dB'
'TXXX:replaygain_track_peak'                        '0.484035'

========================== row from database ==========================
                                              'id'  1245614
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Lhasa - La Llorona/11 El Arbol del Olvido (The Tree of Forgetfulness).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  190
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  4683892
                                           'mtime'  1622760487
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 11 Arbol Olvido (The Tree of Forgetfulness) ifs songwriter folk
                                      'tag_artist'  Lhasa
                                     'tag_release'  La Llorona
                                       'tag_title'  El arbol del olvido
                                             'bpm'  145.267
                                    'search_title'  'arbol':2 'del':3 'el':1 'olvido':4
                                   'search_artist'  'lhasa':1
                                  'search_release'  'la':1 'llorona':2
                                     'search_rest'  '00singer':1 'arbol':4 'eos':3 'folk':13 'forgetfulness':10,11 'ifs':12 'of':9 'olvido':5 'songwriter':2 'the':6,7 'tree':8
                                    'search_combo'  '00singer':8 'arbol':2A,11 'del':3A 'el':1A 'eos':10 'folk':20 'forgetfulness':17,18 'ifs':19 'la':6C 'lhasa':5B 'llorona':7C 'of':16 'olvido':4A,12 'songwriter':9 'the':13,14 'tree':15
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['world', 'latin', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1622760486.7808487  (2021-06-04 00:48:06)
                             'size'  4683892