======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '269'
                                          'artist'  'The Moody Blues'
                                     'text_people'  ''
                                         'release'  'Prog Rock Essentials'
                                           'title'  'Nights In White Satin (Single Version / Mono Mix)'
                                           'quals'  ("['Q-SYN-1', 'Q-UNU-2', 'Q-BUSY-3', 'Q-GRIT-2', 'q-bass-3', 'Q-JZFKS-1', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-PLAY-3', "
 "'Q-CHART-3', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '84'
                                      'tracktotal'  ''
                                            'date'  '2021'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '145.3'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Prog Rock Essentials'
'TBPM' (BPM (beats per minute))                     '145.3'
'TDRC' (Recording time)                             '2021'
'TIT2' (Title/songname/content description)         'Nights In White Satin (Single Version / Mono Mix)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Moody Blues'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '84'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '3'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-10.48 dB'
'TXXX:replaygain_track_peak'                        '1.018123'

========================== row from database ==========================
                                              'id'  1536955
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00newwave-postpunk/Prog Rock Essentials (2021)/84. The Moody Blues - Nights In White Satin (Single Version _ Mono Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  269
                                           'genre'  
                                        'filesize'  10974092
                                           'mtime'  1648486128
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00newwave postpunk (2021) 84. _
                                      'tag_artist'  The Moody Blues
                                     'tag_release'  Prog Rock Essentials
                                       'tag_title'  Nights In White Satin (Single Version / Mono Mix)
                                             'bpm'  145.3
                                    'search_title'  'in':2 'mix':9,10 'mono':8 'nights':1 'satin':4 'single':5,6 'version':7 'white':3
                                   'search_artist'  'blues':3 'moody':2 'the':1
                                  'search_release'  'essentials':3 'prog':1 'rock':2
                                     'search_rest'  '00newwave':4 '00poprockelectronic':1 '2021':6,7 '84':8,9 'disco':3 'postpunk':5 'waves':2
                                    'search_combo'  '00newwave':20 '00poprockelectronic':17 '2021':22,23 '84':24,25 'blues':13B 'disco':19 'essentials':16C 'in':2A 'mix':9A,10A 'mono':8A 'moody':12B 'nights':1A 'postpunk':21 'prog':14C 'rock':15C 'satin':4A 'single':5A,6A 'the':11B 'version':7A 'waves':18 'white':3A
                                    'tag_tracknum'  84
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-SYN-1', 'Q-UNU-2', 'Q-BUSY-3', 'Q-GRIT-2', 'q-bass-3', 'Q-JZFKS-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-PLAY-3', 'Q-CHART-3', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2', 'Q-LOCALNESS-1']
                                      'lastfmtags'  []
                                        'tag_date'  2021
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1648486128.259495  (2022-03-28 18:48:48)
                             'size'  10974092