======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '156'
                                          'artist'  'Marimba Conjunto Espija de Oro'
                                     'text_people'  ''
                                         'release'  'Mexico; Fiestas of Chiapas and Oaxaca'
                                           'title'  'El Chinito'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'Q-PLAY-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-3', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['mexico', 'south america']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'loc-samerica'
                                             'bpm'  '140.433'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Nonesuch 79732'
'TALB' (Album/Movie/Show title)                     'Mexico; Fiestas of Chiapas and Oaxaca'
'TBPM' (BPM (beats per minute))                     '140.433'
'TCON' (Content type, a.k.a. Genre)                 'loc-samerica'
'TDRC' (Recording time)                             '1976'
'TIT2' (Title/songname/content description)         'El Chinito'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Marimba Conjunto Espija de Oro'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['mexico', 'south america']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.47 dB'
'TXXX:replaygain_track_peak'                        '0.925644'

========================== row from database ==========================
                                              'id'  647449
                                            'path'  /data/Music/Bulk/00localcharacter/explorer series - mexico; fiestas of chiapas and oaxaca/02 - El Chinito.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  156
                                           'genre'  loc-samerica
                                        'filesize'  4372480
                                           'mtime'  1620531112
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter explorer series mexico; fiestas chiapas oaxaca 02 loc samerica
                                      'tag_artist'  Marimba Conjunto Espija de Oro
                                     'tag_release'  Mexico; Fiestas of Chiapas and Oaxaca
                                       'tag_title'  El Chinito
                                             'bpm'  140.433
                                    'search_title'  'chinito':2 'el':1
                                   'search_artist'  'conjunto':2 'de':4 'espija':3 'marimba':1 'oro':5
                                  'search_release'  'and':6 'chiapas':5 'fiestas':3 'mexico':1,2 'oaxaca':7 'of':4
                                     'search_rest'  'chiapas':6 'explorer':1 'fiestas':5 'loc':8 'mexico':3,4 'oaxaca':7 'samerica':9 'series':2
                                    'search_combo'  'and':13C 'chiapas':12C,20 'chinito':2A 'conjunto':4B 'de':6B 'el':1A 'espija':5B 'explorer':15 'fiestas':10C,19 'loc':22 'marimba':3B 'mexico':8C,9C,17,18 'oaxaca':14C,21 'of':11C 'oro':7B 'samerica':23 'series':16
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['mexico', 'south america']
                                        'tag_date'  1976
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531111.9050856  (2021-05-09 05:31:51)
                             'size'  4372480