======================== unified (from filesystem) ========================
                                         'bitrate'  '240.99'
                                        'duration'  '429'
                                          'artist'  'Hitomi Shimizu, Hiromi Nishida'
                                     'text_people'  'Hitomi Shimizu / Hiromi Nishida'
                                         'release'  'OTONA'
                                           'title'  'Between B and C'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  '5'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '119.7'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'OTONA'
'TBPM' (BPM (beats per minute))                     '119.7'
'TCOM' (Composer)                                   'Hitomi Shimizu / Hiromi Nishida'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2013'
'TIT2' (Title/songname/content description)         'Between B and C'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Syzygys'
'TPE2' (Band/orchestra/accompaniment)               'Hitomi Shimizu, Hiromi Nishida'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '01/5'
'TXXX:BAND'                                         'Hitomi Shimizu, Hiromi Nishida'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.52 dB'
'TXXX:replaygain_track_peak'                        '0.486110'

========================== row from database ==========================
                                              'id'  1374959
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Hitomi Shimizu, Hiromi Nishida - Syzygys - OTONA [V0]/01. Between B and C.mp3
                                         'working'  None
                                         'bitrate'  241
                                    'duration_sec'  429
                                           'genre'  electronic-unsorted
                                        'filesize'  12953793
                                           'mtime'  1678904125
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Syzygys [V0] 01. electronic unsorted
                                      'tag_artist'  Hitomi Shimizu, Hiromi Nishida
                                     'tag_release'  OTONA
                                       'tag_title'  Between B and C
                                             'bpm'  119.7
                                    'search_title'  'and':3 'b':2 'between':1 'c':4
                                   'search_artist'  'hiromi':4 'hitomi':1 'nishida':5 'shimizu':2,3
                                  'search_release'  'otona':1
                                     'search_rest'  '01':4,5 'electronic':6 'syzygys':1 'unsorted':7 'v0':2,3
                                    'search_combo'  '01':14,15 'and':3A 'b':2A 'between':1A 'c':4A 'electronic':16 'hiromi':8B 'hitomi':5B 'nishida':9B 'otona':10C 'shimizu':6B,7B 'syzygys':11 'unsorted':17 'v0':12,13
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  2013
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678904125.197779  (2023-03-15 19:15:25)
                             'size'  12953793