======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '250'
                                          'artist'  'toe'
                                     'text_people'  ''
                                         'release'  'Songs, Ideas We Forgot'
                                           'title'  'I Dance Alone'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', '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-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['math rock', 'instrumental', 'post rock', 'japanese']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;rock-post;set-pl-sced'
                                             'bpm'  '125.006'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000118E 00001DB9 00005BA8'
'COMM:iTunNORM:eng'                                 (' 0000118E 00001DB9 00005BA8 00007102 00029827 00029827 00008000 00008000 '
 '0001D4C0 0001D4C0')
'TALB' (Album/Movie/Show title)                     'Songs, Ideas We Forgot'
'TBPM' (BPM (beats per minute))                     '125.006'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'rock-post', 'set-pl-sced']
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'I Dance Alone'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'toe'
'TPE2' (Band/orchestra/accompaniment)               'toe'
'TRCK' (Track number/Position in set)               '02'
'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:lastfmtags'                                   ['math rock', 'instrumental', 'post rock', 'japanese']
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.28 dB'
'TXXX:replaygain_track_peak'                        '0.390386'

========================== row from database ==========================
                                              'id'  366045
                                            'path'  /data/Music/Bulk/00localcharacter/toe/[2003] Songs, Ideas We Forgot/02 I Dance Alone.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  250
                                           'genre'  loc-asia-japan;rock-post;set-pl-sced
                                        'filesize'  6023876
                                           'mtime'  1621700415
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [2003] 02 loc asia japan;rock post;set pl sced
                                      'tag_artist'  toe
                                     'tag_release'  Songs, Ideas We Forgot
                                       'tag_title'  I Dance Alone
                                             'bpm'  125.006
                                    'search_title'  'alone':3 'dance':2 'i':1
                                   'search_artist'  'toe':1
                                  'search_release'  'forgot':5 'ideas':3 'songs':1,2 'we':4
                                     'search_rest'  '2003':1,2 'asia':4 'japan':5,7 'loc':3 'pl':13 'post':9,11 'rock':6,8 'sced':14 'set':10,12
                                    'search_combo'  '2003':10,11 'alone':3A 'asia':13 'dance':2A 'forgot':9C 'i':1A 'ideas':7C 'japan':14,16 'loc':12 'pl':22 'post':18,20 'rock':15,17 'sced':23 'set':19,21 'songs':5C,6C 'toe':4B 'we':8C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', '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-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['math rock', 'instrumental', 'post rock', 'japanese']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621700415.4095414  (2021-05-22 18:20:15)
                             'size'  6023876