======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '155'
                                          'artist'  'The Drifters'
                                     'text_people'  ''
                                         'release'  'Very Best Of The Drifters'
                                           'title'  'Up On The Roof'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'doo wop', 'rhythm and blues', 'soul', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '16'
                                            'date'  '1962'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '122.363'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000004D3 000004D3 00001BFF'
'COMM:iTunNORM:eng'                                 (' 000004D3 000004D3 00001BFF 00001BFF 00013EBA 00013EBA 00004F34 00004F34 '
 '00011B2C 00011B2C')
'TALB' (Album/Movie/Show title)                     'Very Best Of The Drifters'
'TBPM' (BPM (beats per minute))                     '122.363'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1962'
'TIT2' (Title/songname/content description)         'Up On The Roof'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Drifters'
'TPE2' (Band/orchestra/accompaniment)               'The Drifters'
'TRCK' (Track number/Position in set)               '11/16'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', 'doo wop', 'rhythm and blues', 'soul', 'oldies']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.437558'

========================== row from database ==========================
                                              'id'  1283018
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/06 - drifters - up on the roof.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  155
                                           'genre'  funk or soul
                                        'filesize'  3733175
                                           'mtime'  1628357941
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 06 drifters up on the roof funk or soul
                                      'tag_artist'  The Drifters
                                     'tag_release'  Very Best Of The Drifters
                                       'tag_title'  Up On The Roof
                                             'bpm'  122.363
                                    'search_title'  'on':2 'roof':4 'the':3 'up':1
                                   'search_artist'  'drifters':2 'the':1
                                  'search_release'  'best':2 'drifters':5 'of':3 'the':4 'very':1
                                     'search_rest'  '00poprockelectronic':1 'drifters':7 'files':5,6 'funk':12 'loose':3,4 'on':9 'or':13 'roof':11 'soul':14 'the':10 'unsorted':2 'up':8
                                    'search_combo'  '00poprockelectronic':12 'best':8C 'drifters':6B,11C,18 'files':16,17 'funk':23 'loose':14,15 'of':9C 'on':2A,20 'or':24 'roof':4A,22 'soul':25 'the':3A,5B,10C,21 'unsorted':13 'up':1A,19 'very':7C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'doo wop', 'rhythm and blues', 'soul', 'oldies']
                                        'tag_date'  1962
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357941.1870093  (2021-08-07 19:39:01)
                             'size'  3733175