======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '237'
                                          'artist'  'Shonen Knife'
                                     'text_people'  ''
                                         'release'  "Let's Knife"
                                           'title'  'Twist Barbie'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese', 'punk', 'j-rock', 'rock', 'female vocalists']"
                                     'discogstags'  "['rock', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '17'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock;rock-gr-punk-pop'
                                             'bpm'  '87.6'
                                             'key'  '8A'
                                        'acoustid'  '1b681383-1ba8-4217-8958-fc42d9e4365a'
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Let's Knife"
'TBPM' (BPM (beats per minute))                     '87.6'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock', 'rock-gr-punk-pop']
'TDOR' (Original release time)                      '1992'
'TDRC' (Recording time)                             '1993-01-26'
'TIT2' (Title/songname/content description)         'Twist Barbie'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'Cassette'
'TPE1' (Lead performer(s)/Soloist(s))               'Shonen Knife'
'TPE2' (Band/orchestra/accompaniment)               'Shonen Knife'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Virgin'
'TRCK' (Track number/Position in set)               '3/17'
'TSO2'                                              'Shonen Knife'
'TSOP' (Performer sort order)                       'Shonen Knife'
'TXXX:ASIN'                                         'B00000EF6E'
'TXXX:Acoustid Id'                                  '1b681383-1ba8-4217-8958-fc42d9e4365a'
'TXXX:Artists'                                      'Shonen Knife'
'TXXX:BARCODE'                                      '077778663843'
'TXXX:CATALOGNUMBER'                                '0777 7 86638 4 3/V4-86638'
'TXXX:MusicBrainz Album Artist Id'                  '5089b746-7612-4a13-9153-33ff2560e161'
'TXXX:MusicBrainz Album Id'                         '589ab869-042f-4ae3-a3d7-384a6b4fa56b'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5089b746-7612-4a13-9153-33ff2560e161'
'TXXX:MusicBrainz Release Group Id'                 'a0e1e7d0-80d0-31da-abb0-e5257d37aa48'
'TXXX:MusicBrainz Release Track Id'                 'd9fdbfcf-a466-40fd-b55e-781251ad4d5d'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'alternative rock']
'TXXX:lastfmtags'                                   ['japanese', 'punk', 'j-rock', 'rock', 'female vocalists']
'TXXX:originalyear'                                 '1992'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.27 dB'
'TXXX:replaygain_track_peak'                        '0.469391'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ae06bde4-1e35-41d3-9612-0d3e66c3e005')

========================== row from database ==========================
                                              'id'  1523065
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Shonen Knife/1992 - Let_s Knife/03-Twist Barbie.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  237
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock;rock-gr-punk-pop
                                        'filesize'  3814972
                                           'mtime'  1621489121
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 1992 Let_s 03 loc asia japan;loc asia japan jrock;rock gr punk pop
                                      'tag_artist'  Shonen Knife
                                     'tag_release'  Let's Knife
                                       'tag_title'  Twist Barbie
                                             'bpm'  87.6
                                    'search_title'  'barbie':2 'twist':1
                                   'search_artist'  'knife':2 'shonen':1
                                  'search_release'  'knife':4 'let':1 'lets':3 's':2
                                     'search_rest'  '00asia':1 '1992':2 'asia':6 'gr':16 'japan':7,9,11 'jrock':12,14 'let':3 'loc':5,8,10 'pop':18 'punk':17 'rock':13,15 's':4
                                    'search_combo'  '00asia':9 '1992':10 'asia':14 'barbie':2A 'gr':24 'japan':15,17,19 'jrock':20,22 'knife':4B,8C 'let':5C,11 'lets':7C 'loc':13,16,18 'pop':26 'punk':25 'rock':21,23 's':6C,12 'shonen':3B 'twist':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'punk', 'j-rock', 'rock', 'female vocalists']
                                        'tag_date'  1993
                                     'discogstags'  ['rock', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1621489120.5849047  (2021-05-20 07:38:40)
                             'size'  3814972