======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '260'
                                          'artist'  'King Tubby'
                                     'text_people'  ''
                                         'release'  'Dangerous Dub'
                                           'title'  'Up Town Special'
                                           '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-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'dub', 'experimental', 'dub reggae', 'jamaica']"
                                     'discogstags'  "['reggae', 'dub']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '142.6'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dangerous Dub'
'TBPM' (BPM (beats per minute))                     '142.6'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Up Town Special'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '260858'
'TPE1' (Lead performer(s)/Soloist(s))               'King Tubby'
'TPE2' (Band/orchestra/accompaniment)               'King Tubby'
'TRCK' (Track number/Position in set)               '3'
'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', 'dub']
'TXXX:lastfmtags'                                   ['reggae', 'dub', 'experimental', 'dub reggae', 'jamaica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.50 dB'
'TXXX:replaygain_track_peak'                        '0.412130'

========================== row from database ==========================
                                              'id'  1367936
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/King Tubby/King Tubby meets Roots Radics - Dangerous Dub/King Tubby - Dangerous Dub - 03 - Up Town Special.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  260
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  6262659
                                           'mtime'  1620521692
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub meets Roots Radics 03 loc style reggae or dub or ska or dancehall dub roots and reggae
                                      'tag_artist'  King Tubby
                                     'tag_release'  Dangerous Dub
                                       'tag_title'  Up Town Special
                                             'bpm'  142.6
                                    'search_title'  'special':3 'town':2 'up':1
                                   'search_artist'  'king':1 'tubby':2
                                  'search_release'  'dangerous':1 'dub':2
                                     'search_rest'  '00reggae':1 'and':12 'dancehall':11 'dub':2 'loc':6 'meets':3 'or':9 'radics':5 'reggae':8 'roots':4 'ska':10 'style':7
                                    'search_combo'  '00reggae':8 'and':19 'dancehall':18 'dangerous':6C 'dub':7C,9 'king':4B 'loc':13 'meets':10 'or':16 'radics':12 'reggae':15 'roots':11 'ska':17 'special':3A 'style':14 'town':2A 'tubby':5B 'up':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', '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-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'dub', 'experimental', 'dub reggae', 'jamaica']
                                        'tag_date'  2001
                                     'discogstags'  ['reggae', 'dub']

============================== file details ==============================
                                           'mtime'  1620521692.1689835  (2021-05-09 02:54:52)
                             'size'  6262659