======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '1740'
                                          'artist'  'X JAPAN'
                                     'text_people'  ''
                                         'release'  'Art of Life'
                                           'title'  'Art of Life'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-3', 'q-drums-3', 'q-other-3', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['heavy metal', 'visual kei', 'metal', 'japanese', 'j rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan-jrock-visualkei;set-pl-sced'
                                             'bpm'  '143.416'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000002A8 00000299 00001196'
'COMM:iTunNORM:eng'                                 (' 000002A8 00000299 00001196 00000DE5 0010F035 0009EB3E 00005A63 00005D70 '
 '00113E55 0003D090')
'TALB' (Album/Movie/Show title)                     'Art of Life'
'TBPM' (BPM (beats per minute))                     '143.416'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan-jrock-visualkei', 'set-pl-sced']
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Art of Life'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'X JAPAN'
'TPE2' (Band/orchestra/accompaniment)               'X JAPAN'
'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'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['heavy metal', 'visual kei', 'metal', 'japanese', 'j rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.78 dB'
'TXXX:replaygain_track_peak'                        '0.839119'

========================== row from database ==========================
                                              'id'  929213
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/X JAPAN/[1993] Art of Life/01 Art of Life.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  1740
                                           'genre'  loc-asia-japan-jrock-visualkei;set-pl-sced
                                        'filesize'  69634477
                                           'mtime'  1623430485
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia [1993] 01 loc asia japan jrock visualkei;set pl sced
                                      'tag_artist'  X JAPAN
                                     'tag_release'  Art of Life
                                       'tag_title'  Art of Life
                                             'bpm'  143.416
                                    'search_title'  'art':1 'life':3 'of':2
                                   'search_artist'  'japan':2 'x':1
                                  'search_release'  'art':1 'life':3 'of':2
                                     'search_rest'  '00asia':1 '1993':2,3 'asia':5 'japan':6 'jrock':7 'loc':4 'pl':12 'sced':13 'set':9,11 'visualkei':8,10
                                    'search_combo'  '00asia':9 '1993':10,11 'art':1A,6C 'asia':13 'japan':5B,14 'jrock':15 'life':3A,8C 'loc':12 'of':2A,7C 'pl':20 'sced':21 'set':17,19 'visualkei':16,18 'x':4B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-mixbeat-2', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['heavy metal', 'visual kei', 'metal', 'japanese', 'j rock']
                                        'tag_date'  1993
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1623430485.24073  (2021-06-11 18:54:45)
                             'size'  69634477