======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '170'
                                          'artist'  'Bis'
                                     'text_people'  ''
                                         'release'  'The New Transistor Heroes'
                                           'title'  'Rollerblade Zero'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'indie pop', 'scottish', 'electronic', 'j rock']"
                                     'discogstags'  "['electronic', 'rock', 'new wave', 'synth-pop', 'indie rock', 'brit pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock;set-pl-sced'
                                             'bpm'  '120.113'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The New Transistor Heroes'
'TBPM' (BPM (beats per minute))                     '120.113'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock', 'set-pl-sced']
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Rollerblade Zero'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bis'
'TPE2' (Band/orchestra/accompaniment)               'Bis'
'TRCK' (Track number/Position in set)               '17'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'rock', 'new wave', 'synth-pop', 'indie rock', 'brit pop']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'scottish', 'electronic', 'j rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.57 dB'
'TXXX:replaygain_track_peak'                        '0.461594'

========================== row from database ==========================
                                              'id'  1376231
                                            'path'  /data/Music/Bulk/00localcharacter/Bis/[1997] The New Transistor Heroes/17 Rollerblade Zero.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  170
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock;set-pl-sced
                                        'filesize'  4144916
                                           'mtime'  1637020096
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [1997] 17 loc asia japan;loc asia japan jrock;set pl sced
                                      'tag_artist'  Bis
                                     'tag_release'  The New Transistor Heroes
                                       'tag_title'  Rollerblade Zero
                                             'bpm'  120.113
                                    'search_title'  'rollerblade':1 'zero':2
                                   'search_artist'  'bis':1
                                  'search_release'  'heroes':4 'new':2 'the':1 'transistor':3
                                     'search_rest'  '1997':1,2 'asia':4 'japan':5,7,9 'jrock':10,12 'loc':3,6,8 'pl':14 'sced':15 'set':11,13
                                    'search_combo'  '1997':8,9 'asia':11 'bis':3B 'heroes':7C 'japan':12,14,16 'jrock':17,19 'loc':10,13,15 'new':5C 'pl':21 'rollerblade':1A 'sced':22 'set':18,20 'the':4C 'transistor':6C 'zero':2A
                                    'tag_tracknum'  17
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'scottish', 'electronic', 'j rock']
                                        'tag_date'  1997
                                     'discogstags'  ['electronic', 'rock', 'new wave', 'synth-pop', 'indie rock', 'brit pop']

============================== file details ==============================
                                           'mtime'  1637020096.460269  (2021-11-16 00:48:16)
                             'size'  4144916