======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '170'
                                          'artist'  "Flipper's Guitar"
                                     'text_people'  ''
                                         'release'  'Camera Talk'
                                           'title'  'colour field'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['shibuya kei', 'neo acoustic', 'japanese', 'pop', 'j pop']"
                                     'discogstags'  "['jazz', 'rock', 'pop', 'acoustic', 'indie pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock-shibuyakei;set-pl-sced'
                                             'bpm'  '118.428'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000005C5 0000068C 00001663'
'COMM:iTunNORM:eng'                                 (' 000005C5 0000068C 00001663 0000194B 0002230E 0001ADC7 00005558 00004BF1 '
 '0001ADDE 0002230E')
'TALB' (Album/Movie/Show title)                     'Camera Talk'
'TBPM' (BPM (beats per minute))                     '118.428'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock-shibuyakei', 'set-pl-sced']
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'colour field'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               "Flipper's Guitar"
'TPE2' (Band/orchestra/accompaniment)               "Flipper's Guitar"
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'rock', 'pop', 'acoustic', 'indie pop']
'TXXX:lastfmtags'                                   ['shibuya kei', 'neo acoustic', 'japanese', 'pop', 'j pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.73 dB'
'TXXX:replaygain_track_peak'                        '0.607640'

========================== row from database ==========================
                                              'id'  1523230
                                            'path'  /data/Music/Bulk/00localcharacter/Flipper_s Guitar/[1990] Camera Talk/06 colour field.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  170
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock-shibuyakei;set-pl-sced
                                        'filesize'  4130157
                                           'mtime'  1621489414
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Flipper_s [1990] 06 loc asia japan;loc asia japan jrock shibuyakei;set pl sced
                                      'tag_artist'  Flipper's Guitar
                                     'tag_release'  Camera Talk
                                       'tag_title'  colour field
                                             'bpm'  118.428
                                    'search_title'  'colour':1 'field':2
                                   'search_artist'  'flipper':1 'flippers':3 'guitar':4 's':2
                                  'search_release'  'camera':1 'talk':2
                                     'search_rest'  '1990':3,4 'asia':6 'flipper':1 'japan':7,9,11 'jrock':12 'loc':5,8,10 'pl':17 's':2 'sced':18 'set':14,16 'shibuyakei':13,15
                                    'search_combo'  '1990':11,12 'asia':14 'camera':7C 'colour':1A 'field':2A 'flipper':3B,9 'flippers':5B 'guitar':6B 'japan':15,17,19 'jrock':20 'loc':13,16,18 'pl':25 's':4B,10 'sced':26 'set':22,24 'shibuyakei':21,23 'talk':8C
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['shibuya kei', 'neo acoustic', 'japanese', 'pop', 'j pop']
                                        'tag_date'  1990
                                     'discogstags'  ['jazz', 'rock', 'pop', 'acoustic', 'indie pop']

============================== file details ==============================
                                           'mtime'  1621489414.2112067  (2021-05-20 07:43:34)
                             'size'  4130157