======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '886'
                                          'artist'  'Fela Kuti & Afrika 70'
                                     'text_people'  ''
                                         'release'  'Zombie [MCA 2001]'
                                           'title'  'Mistake'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', 'Q-JZFKS-4', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['songs over 10 minutes long', 'jazz', 'afrobeat', 'funk', 'african']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk'
                                             'bpm'  '123.632'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Zombie [MCA 2001]'
'TBPM' (BPM (beats per minute))                     '123.632'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Mistake'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '886786'
'TPE1' (Lead performer(s)/Soloist(s))               'Fela Kuti & Afrika 70'
'TRCK' (Track number/Position in set)               '4'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.2 (http://www.mp3dev.org/)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '4'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['songs over 10 minutes long', 'jazz', 'afrobeat', 'funk', 'african']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.70 dB'
'TXXX:replaygain_track_peak'                        '0.383203'

========================== row from database ==========================
                                              'id'  1248702
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Fela Kuti & Afrika 70 - Zombie 320/Fela Kuti & Afrika 70 - 04 - Mistake.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  886
                                           'genre'  funk or soul-funk
                                        'filesize'  35476617
                                           'mtime'  1620665632
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul 320 04 funk or soul funk
                                      'tag_artist'  Fela Kuti & Afrika 70
                                     'tag_release'  Zombie [MCA 2001]
                                       'tag_title'  Mistake
                                             'bpm'  123.632
                                    'search_title'  'mistake':1
                                   'search_artist'  '70':4 'afrika':3 'fela':1 'kuti':2
                                  'search_release'  '2001':4,5 'mca':2,3 'zombie':1
                                     'search_rest'  '320':4 'funk':2 'or':5 'soul':3 'swing':1
                                    'search_combo'  '2001':9C,10C '320':14 '70':5B 'afrika':4B 'fela':2B 'funk':12 'kuti':3B 'mca':7C,8C 'mistake':1A 'or':15 'soul':13 'swing':11 'zombie':6C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-4', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['songs over 10 minutes long', 'jazz', 'afrobeat', 'funk', 'african']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665632.0885077  (2021-05-10 18:53:52)
                             'size'  35476617