======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '141'
                                          'artist'  'ムック'
                                     'text_people'  ''
                                         'release'  'Zekuu'
                                           'title'  'Shinhata'
                                           'quals'  ("['Q-HAP-3', '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-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-2', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jrock', 'rock', 'visual kei', 'japanese', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jpop;loc-asia-japan-jrock'
                                             'bpm'  '126.885'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Zekuu'
'TBPM' (BPM (beats per minute))                     '126.885'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jpop', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Shinhata'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mucc'
'TPE2' (Band/orchestra/accompaniment)               'ムック'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jrock', 'rock', 'visual kei', 'japanese', 'j rock']
'TXXX:q-bass'                                       '4'
'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-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.67 dB'
'TXXX:replaygain_track_peak'                        '0.509342'

========================== row from database ==========================
                                              'id'  929195
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Mucc/Zekuu/01 Shinhata.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  141
                                           'genre'  loc-asia-japan;loc-asia-japan-jpop;loc-asia-japan-jrock
                                        'filesize'  2268483
                                           'mtime'  1622821871
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Mucc 01 loc asia japan;loc asia japan jpop;loc asia japan jrock
                                      'tag_artist'  ムック
                                     'tag_release'  Zekuu
                                       'tag_title'  Shinhata
                                             'bpm'  126.885
                                    'search_title'  'shinhata':1
                                   'search_artist'  'mutuku':2 'ムック':1
                                  'search_release'  'zekuu':1
                                     'search_rest'  '00asia':1 'asia':4 'japan':5,7,9 'jpop':10,12 'jrock':14 'loc':3,6,8,11,13 'mucc':2
                                    'search_combo'  '00asia':5 'asia':8 'japan':9,11,13 'jpop':14,16 'jrock':18 'loc':7,10,12,15,17 'mucc':6 'mutuku':3B 'shinhata':1A 'zekuu':4C 'ムック':2B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-2', 'Q-PIANO-3', '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-4', 'q-grit-2']
                                      'lastfmtags'  ['jrock', 'rock', 'visual kei', 'japanese', 'j rock']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622821871.3278823  (2021-06-04 17:51:11)
                             'size'  2268483