======================== unified (from filesystem) ========================
                                         'bitrate'  '209.199'
                                        'duration'  '179'
                                          'artist'  'The Mike Flowers Pops'
                                     'text_people'  'Billy Page'
                                         'release'  'A Groovy Place'
                                           'title'  'The In Crowd'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['lounge', 'electronic', 'cover', 'pop', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '10'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '99.080'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00001425 00000F36 00009546'
'COMM:iTunNORM:eng'                                 (' 00001425 00000F36 00009546 00007CBE 000192FE 00016EFB 00008000 00008000 '
 '00001198 00006CA9')
'TALB' (Album/Movie/Show title)                     'A Groovy Place'
'TBPM' (BPM (beats per minute))                     '99.080'
'TCOM' (Composer)                                   'Billy Page'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1996'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'The In Crowd'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mike Flowers Pops'
'TPE2' (Band/orchestra/accompaniment)               'The Mike Flowers Pops'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['lounge', 'electronic', 'cover', 'pop', 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.09 dB'
'TXXX:replaygain_track_peak'                        '0.373435'

========================== row from database ==========================
                                              'id'  1500384
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/02-the _in_ crowd.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  179
                                           'genre'  electronic-unsorted
                                        'filesize'  4697685
                                           'mtime'  1620572550
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 02 the _in_ crowd electronic unsorted
                                      'tag_artist'  The Mike Flowers Pops
                                     'tag_release'  A Groovy Place
                                       'tag_title'  The In Crowd
                                             'bpm'  99.08
                                    'search_title'  'crowd':3 'in':2 'the':1
                                   'search_artist'  'flowers':3 'mike':2 'pops':4 'the':1
                                  'search_release'  'a':1 'groovy':2 'place':3
                                     'search_rest'  '00poprockelectronic':1 'crowd':9 'electronic':10 'files':5,6 'in':8 'loose':3,4 'the':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':11 'a':8C 'crowd':3A,19 'electronic':20 'files':15,16 'flowers':6B 'groovy':9C 'in':2A,18 'loose':13,14 'mike':5B 'place':10C 'pops':7B 'the':1A,4B,17 'unsorted':12
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'electronic', 'cover', 'pop', 'easy listening']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620572550.0131085  (2021-05-09 17:02:30)
                             'size'  4697685