======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '223'
                                          'artist'  'the Murder of My Sweet'
                                     'text_people'  ''
                                         'release'  'New IV'
                                           'title'  'Unbreakable'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['symphonic metal', 'gothic metal', 'female fronted metal', 'metal', "
 "'swedish']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '85.023'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'New IV'
'TBPM' (BPM (beats per minute))                     '85.023'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'Unbreakable'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'the Murder of My Sweet'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Afm Records (Soulfood)'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['symphonic metal', 'gothic metal', 'female fronted metal', 'metal', 'swedish']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.36 dB'
'TXXX:replaygain_track_peak'                        '0.328039'

========================== row from database ==========================
                                              'id'  1400960
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Metal Compilation - New IV/029.the Murder of My Sweet - Unbreakable.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  223
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  7192813
                                           'mtime'  1620310303
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Metal Compilation 029.the eid metal doom or gothic
                                      'tag_artist'  the Murder of My Sweet
                                     'tag_release'  New IV
                                       'tag_title'  Unbreakable
                                             'bpm'  85.023
                                    'search_title'  'unbreakable':1
                                   'search_artist'  'murder':2 'my':4 'of':3 'sweet':5 'the':1
                                  'search_release'  'iv':2 'new':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '029':5 '029the':7 'compilation':4 'doom':9 'eid':8 'gothic':11 'metal':3 'or':10 'the':6
                                    'search_combo'  '00dwimp':9 '00metal':10 '029':13 '029the':15 'compilation':12 'doom':17 'eid':16 'gothic':19 'iv':8C 'metal':11 'murder':3B 'my':5B 'new':7C 'of':4B 'or':18 'sweet':6B 'the':2B,14 'unbreakable':1A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', '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-3', 'Q-HAP-1', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['symphonic metal', 'gothic metal', 'female fronted metal', 'metal', 'swedish']
                                        'tag_date'  2012
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620310303.189171  (2021-05-06 16:11:43)
                             'size'  7192813