======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '135'
                                          'artist'  'Judy Street'
                                     'text_people'  ''
                                         'release'  'The Best Northern Soul All-Nig'
                                           'title'  'What'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-1', "
 "'q-busy-3', 'q-grit-2', 'q-play-3', 'Q-OLDST-2', 'q-chart-2', 'q-drums-2', "
 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['northern soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '145.163'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00001251 00001844 00006B37'
'COMM:iTunNORM:eng'                                 (' 00001251 00001844 00006B37 00008C13 0001BB89 0001BB89 00008000 00008000 '
 '00009020 000069D9')
'PRIV:AverageLevel:\x01\x1f\x00\x00'                PRIV(owner='AverageLevel', data=b'\x01\x1f\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'The Best Northern Soul All-Nig'
'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'What'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Judy Street'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'northern soul'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.376195'

========================== row from database ==========================
                                              'id'  1286132
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/top, dance, club, best of, etc/14 what.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  135
                                           'genre'  funk or soul
                                        'filesize'  3250002
                                           'mtime'  1628357966
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted top, dance, club, best of, etc 14 what funk soul
                                      'tag_artist'  Judy Street
                                     'tag_release'  The Best Northern Soul All-Nig
                                       'tag_title'  What
                                             'bpm'  145.163
                                    'search_title'  'what':1
                                   'search_artist'  'judy':1 'street':2
                                  'search_release'  'all':5 'allnig':7 'best':2 'nig':6 'northern':3 'soul':4 'the':1
                                     'search_rest'  '00poprockelectronic':1 'best':9 'club':7,8 'dance':5,6 'etc':12 'funk':14 'of':10,11 'soul':15 'top':3,4 'unsorted':2 'what':13
                                    'search_combo'  '00poprockelectronic':11 'all':8C 'allnig':10C 'best':5C,19 'club':17,18 'dance':15,16 'etc':22 'funk':24 'judy':2B 'nig':9C 'northern':6C 'of':20,21 'soul':7C,25 'street':3B 'the':4C 'top':13,14 'unsorted':12 'what':1A,23
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['northern soul']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357966.493325  (2021-08-07 19:39:26)
                             'size'  3250002