======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '260'
                                          'artist'  'Head Phones President'
                                     'text_people'  ''
                                         'release'  'Vary'
                                           'title'  'Fight Out'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['metal', 'female vocalists', 'japanese', 'nu metal', 'j rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-pop-jrock-visualkei;loc-asia-japan-jrock'
                                             'bpm'  '111.394'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'YEAR: 2003'
'COMM:ID3v1 Comment:XXX'                            'YEAR: 2003'
'COMM:iTunNORM:eng'                                 (' 00000E3B 00000D5E 00005BC8 0000404B 0002E65E 00029855 00008000 00008000 '
 '0000273E 0000755E')
'TALB' (Album/Movie/Show title)                     'Vary'
'TBPM' (BPM (beats per minute))                     '111.394'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-jrock-visualkei', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'iTunes v4.6.0.15'
'TIT2' (Title/songname/content description)         'Fight Out'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Head Phones President'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['metal', 'female vocalists', 'japanese', 'nu metal', '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'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.69 dB'
'TXXX:replaygain_track_peak'                        '0.453008'

========================== row from database ==========================
                                              'id'  1325498
                                            'path'  /data/Music/Bulk/00poprockelectronic/Head Phones President/Vary/02 Fight Out.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  260
                                           'genre'  rock-pop-jrock-visualkei;loc-asia-japan-jrock
                                        'filesize'  4170827
                                           'mtime'  1622801884
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 02 rock pop jrock visualkei;loc asia japan jrock
                                      'tag_artist'  Head Phones President
                                     'tag_release'  Vary
                                       'tag_title'  Fight Out
                                             'bpm'  111.394
                                    'search_title'  'fight':1 'out':2
                                   'search_artist'  'head':1 'phones':2 'president':3
                                  'search_release'  'vary':1
                                     'search_rest'  '00poprockelectronic':1 'asia':9 'japan':10 'jrock':4 'loc':6,8 'pop':3 'rock':2 'visualkei':5,7
                                    'search_combo'  '00poprockelectronic':7 'asia':15 'fight':1A 'head':3B 'japan':16 'jrock':10 'loc':12,14 'out':2A 'phones':4B 'pop':9 'president':5B 'rock':8 'vary':6C 'visualkei':11,13
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['metal', 'female vocalists', 'japanese', 'nu metal', 'j rock']
                                        'tag_date'  2003
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622801884.1422217  (2021-06-04 12:18:04)
                             'size'  4170827