======================== unified (from filesystem) ========================
                                         'bitrate'  '188.95'
                                        'duration'  '207'
                                          'artist'  'John Holt'
                                     'text_people'  ''
                                         'release'  'Police In Helicopter'
                                           'title'  'Beach Party'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-LOCALNESS-3', "
 "'Q-OLDST-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-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jamaica', 'reggae', 'rocksteady', 'roots reggae', 'roots', 'lovers rock']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1983'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub'
                                             'bpm'  '136.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Police In Helicopter'
'TBPM' (BPM (beats per minute))                     '136.9'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub'
'TDRC' (Recording time)                             '1983'
'TIT2' (Title/songname/content description)         'Beach Party'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'John Holt'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'reggae'
'TXXX:lastfmtags'                                   ['jamaica', 'reggae', 'rocksteady', 'roots reggae', 'roots', 'lovers rock']
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.87 dB'
'TXXX:replaygain_track_peak'                        '0.902928'

========================== row from database ==========================
                                              'id'  1384938
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/John Holt - 1983 - Police In Helicopter/04 - Beach Party.mp3
                                         'working'  None
                                         'bitrate'  189
                                    'duration_sec'  207
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub
                                        'filesize'  4897213
                                           'mtime'  1620521632
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub 1983 04 loc style reggae or dub or ska or dancehall dub
                                      'tag_artist'  John Holt
                                     'tag_release'  Police In Helicopter
                                       'tag_title'  Beach Party
                                             'bpm'  136.9
                                    'search_title'  'beach':1 'party':2
                                   'search_artist'  'holt':2 'john':1
                                  'search_release'  'helicopter':3 'in':2 'police':1
                                     'search_rest'  '00reggae':1 '1983':3 'dancehall':9 'dub':2 'loc':4 'or':7 'reggae':6 'ska':8 'style':5
                                    'search_combo'  '00reggae':8 '1983':10 'beach':1A 'dancehall':16 'dub':9 'helicopter':7C 'holt':4B 'in':6C 'john':3B 'loc':11 'or':14 'party':2A 'police':5C 'reggae':13 'ska':15 'style':12
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', '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'  ['jamaica', 'reggae', 'rocksteady', 'roots reggae', 'roots', 'lovers rock']
                                        'tag_date'  1983
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1620521631.8372042  (2021-05-09 02:53:51)
                             'size'  4897213