======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '731'
                                          'artist'  'Mae'
                                     'text_people'  ''
                                         'release'  'Destination: B-Sides'
                                           'title'  'Goodbye, Goodnight (S.M. Remix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie rock', 'indie', 'emo', 'rock', 'alternative']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '128.251'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Destination: B-Sides'
'TBPM' (BPM (beats per minute))                     '128.251'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TIT2' (Title/songname/content description)         'Goodbye, Goodnight (S.M. Remix)'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Mae'
'TRCK' (Track number/Position in set)               '10'
'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:lastfmtags'                                   ['indie rock', 'indie', 'emo', 'rock', 'alternative']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.01 dB'
'TXXX:replaygain_track_peak'                        '0.514147'

========================== row from database ==========================
                                              'id'  1279829
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Mae/Destination B-Sides/Mae - Destination B-Sides 10 Goodbye, Goodnight (S.M. Remix).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  731
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  17563459
                                           'mtime'  1621851249
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 10 ifs songwriter indie unsorted
                                      'tag_artist'  Mae
                                     'tag_release'  Destination: B-Sides
                                       'tag_title'  Goodbye, Goodnight (S.M. Remix)
                                             'bpm'  128.251
                                    'search_title'  'goodbye':1,2 'goodnight':3 'm':5 'remix':7,8 's':4 'sm':6
                                   'search_artist'  'mae':1
                                  'search_release'  'b':3 'bsides':5 'destination':1,2 'sides':4
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'indie':5 'songwriter':2 'unsorted':6
                                    'search_combo'  '00singer':15 'b':12C 'bsides':14C 'destination':10C,11C 'eos':17 'goodbye':1A,2A 'goodnight':3A 'ifs':18 'indie':19 'm':5A 'mae':9B 'remix':7A,8A 's':4A 'sides':13C 'sm':6A 'songwriter':16 'unsorted':20
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie rock', 'indie', 'emo', 'rock', 'alternative']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621851248.80169  (2021-05-24 12:14:08)
                             'size'  17563459