======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '204'
                                          'artist'  'Kevin MacLeod'
                                     'text_people'  'Kevin MacLeod'
                                         'release'  ''
                                           'title'  'Meatball Parade'
                                           'quals'  ("['q-bass-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'Q-HAP-4', "
 "'Q-SYN-2', 'Q-UNU-2', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-3', 'Q-CHART-1', "
 "'Q-JZFKS-2', 'Q-OLDST-4', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'entertaining-internets;set-pl-mor'
                                             'bpm'  '146.0'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'USUAN1500014 from incompetech.com'
'COMM:iTunNORM:eng'                                 (' 0000040E 00000426 0000320C 00004263 00018E43 0000ABD6 00007E5E 00007E7B '
 '00019568 00015172')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000006F0 000000000089D000 00000000 0063EC69 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TBPM' (BPM (beats per minute))                     '146.0'
'TCOM' (Composer)                                   'Kevin MacLeod'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-internets;set-pl-mor'
'TDRC' (Recording time)                             '2015'
'TENC' (Encoded by)                                 'iTunes 12.0.1.26'
'TIT2' (Title/songname/content description)         'Meatball Parade'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kevin MacLeod'
'TXXX:LICENSE'                                      'Royalty-Free'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-4.63 dB'
'TXXX:replaygain_track_peak'                        '0.987792'

========================== row from database ==========================
                                              'id'  1534693
                                            'path'  /data/Music/Bulk/00spent/Meatball Parade.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  204
                                           'genre'  entertaining-internets;set-pl-mor
                                        'filesize'  6557551
                                           'mtime'  1633875914
                                   'redo_metaread'  0
                                        'rest_str'   00spent entertaining internets;set pl mor
                                      'tag_artist'  Kevin MacLeod
                                     'tag_release'  None
                                       'tag_title'  Meatball Parade
                                             'bpm'  146.0
                                    'search_title'  'meatball':1 'parade':2
                                   'search_artist'  'kevin':1 'leod':4 'mac':3 'macleod':2
                                  'search_release'  
                                     'search_rest'  '00spent':1 'entertaining':2 'internets':3,5 'mor':8 'pl':7 'set':4,6
                                    'search_combo'  '00spent':7 'entertaining':8 'internets':9,11 'kevin':3B 'leod':6B 'mac':5B 'macleod':4B 'meatball':1A 'mor':14 'parade':2A 'pl':13 'set':10,12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'Q-MIXBEAT-2', 'Q-OLDST-4', 'Q-GRIT-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-piano-1', 'Q-CHART-1', 'q-drums-2', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-4', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  []
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1633875914.240133  (2021-10-10 16:25:14)
                             'size'  6557551