======================== unified (from filesystem) ========================
                                         'bitrate'  '182.033'
                                        'duration'  '212'
                                          'artist'  'Erasure'
                                     'text_people'  ''
                                         'release'  'Pop! The First 20 Hits'
                                           'title'  'Sometimes'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'scrubs', 'pop', 'synthpop']"
                                     'discogstags'  "['electronic', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '20'
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '108.181'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000005E3 00000664 00002849'
'COMM:iTunNORM:eng'                                 (' 000005E3 00000664 00002849 00002769 00028986 0002B80D 00007BB9 00007CCC '
 '0002E369 00020CFD')
'TALB' (Album/Movie/Show title)                     'Pop! The First 20 Hits'
'TBPM' (BPM (beats per minute))                     '108.181'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Sometimes'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Erasure'
'TPE2' (Band/orchestra/accompaniment)               'Erasure'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/20'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'synth-pop']
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'scrubs', 'pop', 'synthpop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.77 dB'
'TXXX:replaygain_track_peak'                        '0.689425'

========================== row from database ==========================
                                              'id'  1319475
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/erasure-sometimes.mp3
                                         'working'  None
                                         'bitrate'  182
                                    'duration_sec'  212
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  4910757
                                           'mtime'  1622757462
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] erasure sometimes electronic we electropop or synthpop
                                      'tag_artist'  Erasure
                                     'tag_release'  Pop! The First 20 Hits
                                       'tag_title'  Sometimes
                                             'bpm'  108.181
                                    'search_title'  'sometimes':1
                                   'search_artist'  'erasure':1
                                  'search_release'  '20':4 'first':3 'hits':5 'pop':1 'the':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':9 'electropop':11 'erasure':7 'files':5,6 'loose':3,4 'or':12 'sometimes':8 'synthpop':13 'unsorted':2 'we':10
                                    'search_combo'  '00poprockelectronic':8 '20':6C 'electronic':16 'electropop':18 'erasure':2B,14 'files':12,13 'first':5C 'hits':7C 'loose':10,11 'or':19 'pop':3C 'sometimes':1A,15 'synthpop':20 'the':4C 'unsorted':9 'we':17
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'scrubs', 'pop', 'synthpop']
                                        'tag_date'  1986
                                     'discogstags'  ['electronic', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1622757461.5399234  (2021-06-03 23:57:41)
                             'size'  4910757