======================== unified (from filesystem) ========================
                                         'bitrate'  '283.127'
                                        'duration'  '231'
                                          'artist'  'Love Is All'
                                     'text_people'  ''
                                         'release'  'Nine Times That Same Song'
                                           'title'  'Turn the Radio Off'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swedish', 'indie pop', 'indie', 'alternative', 'indie rock']"
                                     'discogstags'  "['rock', 'lo-fi', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '131.413'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00003681 00002F5B 0000C0DB'
'COMM:iTunNORM:eng'                                 (' 00003681 00002F5B 0000C0DB 00007869 00035B5C 0002E45E 00008000 00008000 '
 '00021B38 00015B4A')
'TALB' (Album/Movie/Show title)                     'Nine Times That Same Song'
'TBPM' (BPM (beats per minute))                     '131.413'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Turn the Radio Off'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Love Is All'
'TPE2' (Band/orchestra/accompaniment)               'Love Is All'
'TRCK' (Track number/Position in set)               '3'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.97 (beta)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'lo-fi', 'indie rock']
'TXXX:lastfmtags'                                   ['swedish', 'indie pop', 'indie', 'alternative', 'indie rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.24 dB'
'TXXX:replaygain_track_peak'                        '0.324911'

========================== row from database ==========================
                                              'id'  1261073
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Love Is All/[2005] Nine Times That Same Song/03 Turn the Radio Off.mp3
                                         'working'  None
                                         'bitrate'  283
                                    'duration_sec'  231
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  8223919
                                           'mtime'  1621851137
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos [2005] 03 ifs songwriter indie unsorted
                                      'tag_artist'  Love Is All
                                     'tag_release'  Nine Times That Same Song
                                       'tag_title'  Turn the Radio Off
                                             'bpm'  131.413
                                    'search_title'  'off':4 'radio':3 'the':2 'turn':1
                                   'search_artist'  'all':3 'is':2 'love':1
                                  'search_release'  'nine':1 'same':4 'song':5 'that':3 'times':2
                                     'search_rest'  '00singer':1 '2005':4,5 'eos':3 'ifs':6 'indie':7 'songwriter':2 'unsorted':8
                                    'search_combo'  '00singer':13 '2005':16,17 'all':7B 'eos':15 'ifs':18 'indie':19 'is':6B 'love':5B 'nine':8C 'off':4A 'radio':3A 'same':11C 'song':12C 'songwriter':14 'that':10C 'the':2A 'times':9C 'turn':1A 'unsorted':20
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'indie pop', 'indie', 'alternative', 'indie rock']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'lo-fi', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621851136.8359296  (2021-05-24 12:12:16)
                             'size'  8223919