======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '225'
                                          'artist'  'LOVE PSYCHEDELICO'
                                     'text_people'  ''
                                         'release'  'The Greatest Hits'
                                           'title'  'LOW (ver.1.1)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'female vocalists', 'japanese', 'j pop', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '11'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jpop'
                                             'bpm'  '89'
                                             'key'  '7B'
                                        'acoustid'  '788209f4-9e21-4acc-bb93-71d34beb0db1'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Greatest Hits'
'TBPM' (BPM (beats per minute))                     '89'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jpop']
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001-01-11'
'TIT2' (Title/songname/content description)         'LOW (ver.1.1)'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'LOVE PSYCHEDELICO'
'TPE2' (Band/orchestra/accompaniment)               'LOVE PSYCHEDELICO'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Victor'
'TRCK' (Track number/Position in set)               '10/11'
'TSO2'                                              'LOVE PSYCHEDELICO'
'TSOP' (Performer sort order)                       'LOVE PSYCHEDELICO'
'TXXX:Acoustid Id'                                  '788209f4-9e21-4acc-bb93-71d34beb0db1'
'TXXX:Artists'                                      'LOVE PSYCHEDELICO'
'TXXX:BARCODE'                                      '4988002408641'
'TXXX:CATALOGNUMBER'                                'VICL-60666'
'TXXX:MusicBrainz Album Artist Id'                  '2367827d-3590-4d64-9cad-3470172b254a'
'TXXX:MusicBrainz Album Id'                         'f8f2ce87-eb77-4d6e-9067-ae87c62e2aa6'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'pseudo-release'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '2367827d-3590-4d64-9cad-3470172b254a'
'TXXX:MusicBrainz Release Group Id'                 '37a489c3-1434-3ce8-b8a0-a9c40ed2b426'
'TXXX:MusicBrainz Release Track Id'                 'f9a62978-9628-3a59-a424-c3ff0bd1c0c5'
'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:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['rock', 'female vocalists', 'japanese', 'j pop', 'j rock']
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.23 dB'
'TXXX:replaygain_track_peak'                        '0.412633'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6d848307-26e6-4579-b75f-0f915be689d7')

========================== row from database ==========================
                                              'id'  929991
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Love Psychedelico/10 - Love Psychedelico - Low (ver 1_1).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  225
                                           'genre'  loc-asia-japan;loc-asia-japan-jpop
                                        'filesize'  3618583
                                           'mtime'  1622821765
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Love Psychedelico 10 Love Psychedelico Low 1_1) loc asia japan;loc asia japan jpop
                                      'tag_artist'  LOVE PSYCHEDELICO
                                     'tag_release'  The Greatest Hits
                                       'tag_title'  LOW (ver.1.1)
                                             'bpm'  89.0
                                    'search_title'  '1':3,4 'low':1 'ver':2 'ver11':5
                                   'search_artist'  'love':1 'psychedelico':2
                                  'search_release'  'greatest':2 'hits':3 'the':1
                                     'search_rest'  '00asia':1 '1':5,6,7,8 'asia':10 'japan':11,13,15 'jpop':16 'loc':9,12,14 'love':2 'low':4 'psychedelico':3
                                    'search_combo'  '00asia':11 '1':3A,4A,15,16,17,18 'asia':20 'greatest':9C 'hits':10C 'japan':21,23,25 'jpop':26 'loc':19,22,24 'love':6B,12 'low':1A,14 'psychedelico':7B,13 'the':8C 'ver':2A 'ver11':5A
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'female vocalists', 'japanese', 'j pop', 'j rock']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622821764.8555727  (2021-06-04 17:49:24)
                             'size'  3618583