======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '170'
                                          'artist'  'Twilight Circus Dub Sound System'
                                     'text_people'  ''
                                         'release'  'Dub From The Secret Vaults'
                                           'title'  'Bassie Dub II'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-OLDST-2', 'Q-HHRNBTT-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-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'dub', 'electronic', 'electro dub', 'dub u']"
                                     'discogstags'  "['dub']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub'
                                             'bpm'  '100.8'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Dub From The Secret Vaults'
'TBPM' (BPM (beats per minute))                     '100.8'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub'
'TDRC' (Recording time)                             '2004'
'TDRL' (Release time)                               '2004'
'TIT2' (Title/songname/content description)         'Bassie Dub II'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Twilight Circus Dub Sound System'
'TRCK' (Track number/Position in set)               '12'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf54.63.104'
'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:comment'                                      'Track 12'
'TXXX:discogstags'                                  'dub'
'TXXX:lastfmtags'                                   ['reggae', 'dub', 'electronic', 'electro dub', 'dub u']
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.70 dB'
'TXXX:replaygain_track_peak'                        '0.466971'

========================== row from database ==========================
                                              'id'  1383874
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Twilight Circus Dub Sound System - Dub From The Secret Vaults/12 Bassie Dub II.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  170
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub
                                        'filesize'  6899447
                                           'mtime'  1620522579
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub 12 loc style reggae or dub or ska or dancehall dub
                                      'tag_artist'  Twilight Circus Dub Sound System
                                     'tag_release'  Dub From The Secret Vaults
                                       'tag_title'  Bassie Dub II
                                             'bpm'  100.8
                                    'search_title'  'bassie':1 'dub':2 'ii':3
                                   'search_artist'  'circus':2 'dub':3 'sound':4 'system':5 'twilight':1
                                  'search_release'  'dub':1 'from':2 'secret':4 'the':3 'vaults':5
                                     'search_rest'  '00reggae':1 'dancehall':8 'dub':2 'loc':3 'or':6 'reggae':5 'ska':7 'style':4
                                    'search_combo'  '00reggae':14 'bassie':1A 'circus':5B 'dancehall':21 'dub':2A,6B,9C,15 'from':10C 'ii':3A 'loc':16 'or':19 'reggae':18 'secret':12C 'ska':20 'sound':7B 'style':17 'system':8B 'the':11C 'twilight':4B 'vaults':13C
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  12A
                                           '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-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'dub', 'electronic', 'electro dub', 'dub u']
                                        'tag_date'  2004
                                     'discogstags'  ['dub']

============================== file details ==============================
                                           'mtime'  1620522579.232385  (2021-05-09 03:09:39)
                             'size'  6899447