======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '177'
                                          'artist'  'The Mountain Goats'
                                     'text_people'  ''
                                         'release'  'Full Force Galesburg'
                                           'title'  'Chinese House Flowers'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']"
                                     'discogstags'  "['rock', 'lo-fi']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '16'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '86.5'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000569 00000569 00005BC9 00005BC9 0000016D 0000016D 0000709E 00007372 '
 '00000139 00000139')
'COMM:iTunes_CDDB_IDs:eng'                          '16+6B633B561F7A2BF8CCBB75A30A79EF9F+91693'
'TALB' (Album/Movie/Show title)                     'Full Force Galesburg'
'TBPM' (BPM (beats per minute))                     '86.5'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1997'
'TENC' (Encoded by)                                 'iTunes v3.0.1'
'TIT2' (Title/songname/content description)         'Chinese House Flowers'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mountain Goats'
'TPOS' (Part of a set)                              '/1'
'TRCK' (Track number/Position in set)               '5/16'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'lo-fi']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.634738'

========================== row from database ==========================
                                              'id'  1302338
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Mountain Goats/Full Force Galesburg/05-chinese house flowers.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  177
                                           'genre'  ifs-songwriter
                                        'filesize'  4517760
                                           'mtime'  1628357230
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 05 chinese house flowers ifs songwriter
                                      'tag_artist'  The Mountain Goats
                                     'tag_release'  Full Force Galesburg
                                       'tag_title'  Chinese House Flowers
                                             'bpm'  86.5
                                    'search_title'  'chinese':1 'flowers':3 'house':2
                                   'search_artist'  'goats':3 'mountain':2 'the':1
                                  'search_release'  'force':2 'full':1 'galesburg':3
                                     'search_rest'  '00poprockelectronic':1 'chinese':2 'flowers':4 'house':3 'ifs':5 'songwriter':6
                                    'search_combo'  '00poprockelectronic':10 'chinese':1A,11 'flowers':3A,13 'force':8C 'full':7C 'galesburg':9C 'goats':6B 'house':2A,12 'ifs':14 'mountain':5B 'songwriter':15 'the':4B
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
                                        'tag_date'  1997
                                     'discogstags'  ['rock', 'lo-fi']

============================== file details ==============================
                                           'mtime'  1628357230.4154758  (2021-08-07 19:27:10)
                             'size'  4517760