======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '238'
                                          'artist'  'Prince Far I'
                                     'text_people'  ''
                                         'release'  'Prince Far I & Scientist - Jamaican Heroes /mix:Scientist - 1980'
                                           'title'  'Musical History'
                                           '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-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'dub', 'rasta', 'roots reggae', 'roots']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '128.251'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Prince Far I & Scientist - Jamaican Heroes /mix:Scientist - 1980'
'TBPM' (BPM (beats per minute))                     '128.251'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Musical History'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince Far I'
'TRCK' (Track number/Position in set)               '8'
'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'                                      '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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.23 dB'
'TXXX:replaygain_track_peak'                        '0.897997'

========================== row from database ==========================
                                              'id'  1376463
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Prince Far I/prince far i & scientist - jamaican heroes 1980/Prince Far I & Scientist - Jamaican heroes - 08 - Musical History.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  238
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  7645056
                                           'mtime'  1620522130
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub prince far scientist jamaican heroes heroes 08 loc style reggae dub ska dancehall dub roots and reggae
                                      'tag_artist'  Prince Far I
                                     'tag_release'  Prince Far I & Scientist - Jamaican Heroes /mix:Scientist - 1980
                                       'tag_title'  Musical History
                                             'bpm'  128.251
                                    'search_title'  'history':2 'musical':1
                                   'search_artist'  'far':2 'i':3 'prince':1
                                  'search_release'  '1980':10 'far':2 'heroes':6 'i':3 'jamaican':5 'mix':7 'mixscientist':9 'prince':1 'scientist':4,8
                                     'search_rest'  '00reggae':1 'and':14 'dancehall':12 'dub':2 'far':4 'heroes':7 'jamaican':6 'loc':8 'prince':3 'reggae':10 'roots':13 'scientist':5 'ska':11 'style':9
                                    'search_combo'  '00reggae':16 '1980':15C 'and':29 'dancehall':27 'dub':17 'far':4B,7C,19 'heroes':11C,22 'history':2A 'i':5B,8C 'jamaican':10C,21 'loc':23 'mix':12C 'mixscientist':14C 'musical':1A 'prince':3B,6C,18 'reggae':25 'roots':28 'scientist':9C,13C,20 'ska':26 'style':24
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', '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', 'rasta', 'roots reggae', 'roots']
                                        'tag_date'  1980
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1620522130.186607  (2021-05-09 03:02:10)
                             'size'  7645056