======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '270'
                                          'artist'  'Klaha'
                                     'text_people'  ''
                                         'release'  'Mdrchen'
                                           'title'  'Maarchen [instrumental]'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'Q-PLAY-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['j pop', 'jrock', 'visual kei', 'japanese', 'jpop', 'j rock']"
                                     'discogstags'  "['j-pop', 'pop', 'ballad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '6'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock'
                                             'bpm'  '139.948'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00002669 00000908 0000CD16'
'COMM:iTunNORM:eng'                                 (' 00002669 00000908 0000CD16 00005F4B 0001B9F0 0001B91F 00008A65 00008C33 '
 '0002E0BC 000032B6')
'COMM:iTunes_CDDB_IDs:eng'                          '6+A6784783DE135BCA273835665DE05EC5+2841944'
'TALB' (Album/Movie/Show title)                     'Mdrchen'
'TBPM' (BPM (beats per minute))                     '139.948'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'iTunes v4.9.0.17'
'TIT2' (Title/songname/content description)         'Maarchen [instrumental]'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Klaha'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '5/6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['j-pop', 'pop', 'ballad']
'TXXX:lastfmtags'                                   ['j pop', 'jrock', 'visual kei', 'japanese', 'jpop', 'j rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.403262'

========================== row from database ==========================
                                              'id'  437399
                                            'path'  /data/Music/Bulk/00localcharacter/Klaha/Märchen/05 Maarchen [instrumental].mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  270
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock
                                        'filesize'  5409568
                                           'mtime'  1637330171
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Märchen 05 loc asia japan;loc asia japan jrock
                                      'tag_artist'  Klaha
                                     'tag_release'  Mdrchen
                                       'tag_title'  Maarchen [instrumental]
                                             'bpm'  139.948
                                    'search_title'  'instrumental':2,3 'maarchen':1
                                   'search_artist'  'klaha':1
                                  'search_release'  'mdrchen':1
                                     'search_rest'  'asia':4 'japan':5,7,9 'jrock':10 'loc':3,6,8 'marchen':1,2
                                    'search_combo'  'asia':9 'instrumental':2A,3A 'japan':10,12,14 'jrock':15 'klaha':4B 'loc':8,11,13 'maarchen':1A 'marchen':6,7 'mdrchen':5C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['j pop', 'jrock', 'visual kei', 'japanese', 'jpop', 'j rock']
                                        'tag_date'  2003
                                     'discogstags'  ['j-pop', 'pop', 'ballad']

============================== file details ==============================
                                           'mtime'  1637330171.039145  (2021-11-19 14:56:11)
                             'size'  5409568