======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '205'
                                          'artist'  'Prince Far I'
                                     'text_people'  ''
                                         'release'  'Ten Commandments'
                                           'title'  'Head of the Buccaneer'
                                           '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-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'dub', 'rasta', 'roots reggae', 'roots']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '90.090'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ten Commandments'
'TBPM' (BPM (beats per minute))                     '90.090'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Head of the Buccaneer'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince Far I'
'TRCK' (Track number/Position in set)               '05'
'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'                                   ['reggae', 'dub', 'rasta', 'roots reggae', 'roots']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.15 dB'
'TXXX:replaygain_track_peak'                        '0.860476'

========================== row from database ==========================
                                              'id'  1263961
                                            'path'  /data/Music/Bulk/00localcharacter/Prince Far I/Ten Commandments/Prince Far I - 05 - Head of the Buccaneer.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  205
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  4929773
                                           'mtime'  1620523522
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 05 loc style reggae or dub or ska or dancehall dub roots reggae
                                      'tag_artist'  Prince Far I
                                     'tag_release'  Ten Commandments
                                       'tag_title'  Head of the Buccaneer
                                             'bpm'  90.09
                                    'search_title'  'buccaneer':4 'head':1 'of':2 'the':3
                                   'search_artist'  'far':2 'i':3 'prince':1
                                  'search_release'  'commandments':2 'ten':1
                                     'search_rest'  'dancehall':7 'dub':5 'loc':1 'or':4 'reggae':3 'roots':8 'ska':6 'style':2
                                    'search_combo'  'buccaneer':4A 'commandments':9C 'dancehall':16 'dub':14 'far':6B 'head':1A 'i':7B 'loc':10 'of':2A 'or':13 'prince':5B 'reggae':12 'roots':17 'ska':15 'style':11 'ten':8C 'the':3A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'dub', 'rasta', 'roots reggae', 'roots']
                                        'tag_date'  1999
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1620523522.0832536  (2021-05-09 03:25:22)
                             'size'  4929773