======================== unified (from filesystem) ========================
                                         'bitrate'  '152.296'
                                        'duration'  '181'
                                          'artist'  'The Kingstonians'
                                     'text_people'  ''
                                         'release'  'Reggae Singles'
                                           'title'  'Hold Down'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jamaica', 'reggae', 'skinhead reggae', 'ska', 'rocksteady']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '84.070'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:;\x1b\x00\x00'                   PRIV(owner='AverageLevel', data=b';\x1b\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')
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'TALB' (Album/Movie/Show title)                     'Reggae Singles'
'TBPM' (BPM (beats per minute))                     '84.070'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Hold Down'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Kingstonians'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'reggae'
'TXXX:lastfmtags'                                   ['jamaica', 'reggae', 'skinhead reggae', 'ska', 'rocksteady']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.475633'

========================== row from database ==========================
                                              'id'  985604
                                            'path'  /data/Music/Bulk/00localcharacter/reggae singles/Kingstonians - Hold Down [CRAB-19A] kuky3.mp3
                                         'working'  None
                                         'bitrate'  152
                                    'duration_sec'  181
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  3454154
                                           'mtime'  1620523990
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter reggae singles [CRAB 19A] kuky3 loc style reggae or dub or ska or dancehall dub roots and reggae
                                      'tag_artist'  The Kingstonians
                                     'tag_release'  Reggae Singles
                                       'tag_title'  Hold Down
                                             'bpm'  84.07
                                    'search_title'  'down':2 'hold':1
                                   'search_artist'  'kingstonians':2 'the':1
                                  'search_release'  'reggae':1 'singles':2
                                     'search_rest'  '19a':5,6 'and':15 'crab':3,4 'dancehall':13 'dub':11 'kuky3':7 'loc':8 'or':10 'reggae':1 'roots':14 'singles':2 'ska':12 'style':9
                                    'search_combo'  '19a':11,12 'and':21 'crab':9,10 'dancehall':19 'down':2A 'dub':17 'hold':1A 'kingstonians':4B 'kuky3':13 'loc':14 'or':16 'reggae':5C,7 'roots':20 'singles':6C,8 'ska':18 'style':15 'the':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jamaica', 'reggae', 'skinhead reggae', 'ska', 'rocksteady']
                                        'tag_date'  1969
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1620523990.1713097  (2021-05-09 03:33:10)
                             'size'  3454154