======================== unified (from filesystem) ========================
                                         'bitrate'  '161.417'
                                        'duration'  '193'
                                          'artist'  'Desmond Dekker'
                                     'text_people'  ''
                                         'release'  'Israelites'
                                           'title'  'Get Up Little Suzie'
                                           'quals'  ("['Q-BUSY-2', 'Q-GRIT-1', 'q-bass-4', 'q-drums-3', 'q-other-2', 'q-piano-1', "
 "'q-vocals-3', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-3', 'Q-PLAY-3', 'Q-CHART-3', "
 "'Q-JZFKS-3', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['ska', 'reggae', 'rocksteady', 'jamaica', 'roots reggae', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-unsorted'
                                             'bpm'  '94.5'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Israelites'
'TBPM' (BPM (beats per minute))                     '94.5'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-unsorted'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Get Up Little Suzie'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Desmond Dekker'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '3'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['ska', 'reggae', 'rocksteady', 'jamaica', 'roots reggae', '60s']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_album_gain'                        '-5.20 dB'
'TXXX:replaygain_album_peak'                        '0.992863'
'TXXX:replaygain_track_gain'                        '-4.36 dB'
'TXXX:replaygain_track_peak'                        '0.972588'

========================== row from database ==========================
                                              'id'  1494894
                                            'path'  /data/Music/Bulk/00localcharacter/Desmond Dekker - Israelites/11 - Desmond Dekker - Get Up Little Suzie.mp3
                                         'working'  None
                                         'bitrate'  161
                                    'duration_sec'  193
                                           'genre'  loc-style-reggae or dub or ska or dancehall-unsorted
                                        'filesize'  3909928
                                           'mtime'  1621089280
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 11 loc style reggae or dub or ska or dancehall unsorted
                                      'tag_artist'  Desmond Dekker
                                     'tag_release'  Israelites
                                       'tag_title'  Get Up Little Suzie
                                             'bpm'  94.5
                                    'search_title'  'get':1 'little':3 'suzie':4 'up':2
                                   'search_artist'  'dekker':2 'desmond':1
                                  'search_release'  'israelites':1
                                     'search_rest'  'dancehall':7 'dub':5 'loc':1 'or':4 'reggae':3 'ska':6 'style':2 'unsorted':8
                                    'search_combo'  'dancehall':14 'dekker':6B 'desmond':5B 'dub':12 'get':1A 'israelites':7C 'little':3A 'loc':8 'or':11 'reggae':10 'ska':13 'style':9 'suzie':4A 'unsorted':15 'up':2A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-3', 'Q-JZFKS-3', 'Q-CHART-3', 'q-drums-3', 'Q-SYN-1', 'q-other-2', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['ska', 'reggae', 'rocksteady', 'jamaica', 'roots reggae', '60s']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621089279.5708675  (2021-05-15 16:34:39)
                             'size'  3909928