======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '220'
                                          'artist'  'Macdonald Duck Eclair'
                                     'text_people'  ''
                                         'release'  'Short Short'
                                           'title'  'Over the Rainbow'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['shibuya kei', 'electronic', 'japanese', 'j pop', 'picopop']"
                                     'discogstags'  "['eurobeat', 'j-pop', 'electro', 'techno', 'electronic', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock-shibuyakei'
                                             'bpm'  '120.042'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '000005F8 000001D1 00013C12'
'TALB' (Album/Movie/Show title)                     'Short Short'
'TBPM' (BPM (beats per minute))                     '120.042'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock-shibuyakei']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Over the Rainbow'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Macdonald Duck Eclair'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['eurobeat', 'j-pop', 'electro', 'techno', 'electronic', 'pop']
'TXXX:lastfmtags'                                   ['shibuya kei', 'electronic', 'japanese', 'j pop', 'picopop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.27 dB'
'TXXX:replaygain_track_peak'                        '0.638148'

========================== row from database ==========================
                                              'id'  127033
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Macdonald Duck Eclair/Macdonald Duck Eclair - Short Short - 13 - Over the Rainbow.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  220
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock-shibuyakei
                                        'filesize'  3525090
                                           'mtime'  1628354013
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 13 loc asia japan;loc asia japan jrock shibuyakei
                                      'tag_artist'  Macdonald Duck Eclair
                                     'tag_release'  Short Short
                                       'tag_title'  Over the Rainbow
                                             'bpm'  120.042
                                    'search_title'  'over':1 'rainbow':3 'the':2
                                   'search_artist'  'duck':2 'eclair':3 'macdonald':1
                                  'search_release'  'short':1
                                     'search_rest'  'asia':2 'japan':3,5,7 'jrock':8 'loc':1,4,6 'shibuyakei':9
                                    'search_combo'  'asia':9 'duck':5B 'eclair':6B 'japan':10,12,14 'jrock':15 'loc':8,11,13 'macdonald':4B 'over':1A 'rainbow':3A 'shibuyakei':16 'short':7C 'the':2A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-4', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['shibuya kei', 'electronic', 'japanese', 'j pop', 'picopop']
                                        'tag_date'  2004
                                     'discogstags'  ['eurobeat', 'j-pop', 'electro', 'techno', 'electronic', 'pop']

============================== file details ==============================
                                           'mtime'  1628354013.3095896  (2021-08-07 18:33:33)
                             'size'  3525090