======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '90'
                                          'artist'  'Yasuaki Shimizu (清水靖晃)'
                                     'text_people'  ''
                                         'release'  'Far East Express'
                                           'title'  'Heart Church'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'Q-PLAY-2', 'q-bass-2', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '9'
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '86.107'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000002FF 00000334 000016C3'
'COMM:iTunNORM:eng'                                 (' 000002FF 00000334 000016C3 000017A9 0000D69A 0000D111 00006725 00006147 '
 '0000FD55 0000FD55')
'TALB' (Album/Movie/Show title)                     'Far East Express'
'TBPM' (BPM (beats per minute))                     '86.107'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1979'
'TENC' (Encoded by)                                 'Sound Grinder 3.3.5'
'TIT2' (Title/songname/content description)         'Heart Church'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Yasuaki Shimizu'
'TPE2' (Band/orchestra/accompaniment)               'Yasuaki Shimizu (清水靖晃)'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.02 dB'
'TXXX:replaygain_track_peak'                        '0.677625'

========================== row from database ==========================
                                              'id'  930927
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Yasuaki Shimizu - Far East Express/03 Heart Church.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  90
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3753571
                                           'mtime'  1620574273
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 03 prerock jb jazz unsorted
                                      'tag_artist'  Yasuaki Shimizu (清水靖晃)
                                     'tag_release'  Far East Express
                                       'tag_title'  Heart Church
                                             'bpm'  86.107
                                    'search_title'  'church':2 'heart':1
                                   'search_artist'  'shimizu':2 'yasuaki':1 '清水靖晃':3,4
                                  'search_release'  'east':2 'express':3 'far':1
                                     'search_rest'  '00asia':1 'jazz':4 'jb':3 'prerock':2 'unsorted':5
                                    'search_combo'  '00asia':10 'church':2A 'east':8C 'express':9C 'far':7C 'heart':1A 'jazz':13 'jb':12 'prerock':11 'shimizu':4B 'unsorted':14 'yasuaki':3B '清水靖晃':5B,6B
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1979
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620574272.7184887  (2021-05-09 17:31:12)
                             'size'  3753571