======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '227'
                                          'artist'  'King Tubby'
                                     'text_people'  ''
                                         'release'  'Laser Rock'
                                           'title'  'Surrender'
                                           '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-3', 'q-other-2', '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'  '8'
                                      'tracktotal'  '12'
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '88.015'
                                             'key'  '3A'
                                        'acoustid'  '58956e37-15fb-4e3c-a297-9b17c035ad52'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Laser Rock'
'TBPM' (BPM (beats per minute))                     '88.015'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TDOR' (Original release time)                      '1992'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         'Surrender'
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'King Tubby'
'TPE2' (Band/orchestra/accompaniment)               'King Tubby'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Lagoon'
'TRCK' (Track number/Position in set)               '8/12'
'TSO2'                                              'Tubby, King'
'TSOP' (Performer sort order)                       'Tubby, King'
'TXXX:Acoustid Id'                                  '58956e37-15fb-4e3c-a297-9b17c035ad52'
'TXXX:Artists'                                      'King Tubby'
'TXXX:BARCODE'                                      '3307514403929'
'TXXX:CATALOGNUMBER'                                'LG2-1039'
'TXXX:MusicBrainz Album Artist Id'                  '576134a6-9f1f-4bfa-af04-4848195849ca'
'TXXX:MusicBrainz Album Id'                         '65585a74-6ed0-4b65-9e59-f90d956b13db'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '576134a6-9f1f-4bfa-af04-4848195849ca'
'TXXX:MusicBrainz Release Group Id'                 'ce825cc9-c5ba-4499-a18d-2f07154341e8'
'TXXX:MusicBrainz Release Track Id'                 '6d1870e1-6aa6-4cb2-b125-5d1263cb30b4'
'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:originalyear'                                 '1992'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.46 dB'
'TXXX:replaygain_track_peak'                        '0.979909'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'5ca2ddc3-83e8-4ad9-b248-35d409ec1222')

========================== row from database ==========================
                                              'id'  1364289
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/King Tubby/king Tubby - laser rock/king tubby - Laser rock - 08 - surrender.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  227
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  5453916
                                           'mtime'  1620521710
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub king laser rock king tubby rock 08 surrender loc style reggae or dub or ska or dancehall dub roots and reggae
                                      'tag_artist'  King Tubby
                                     'tag_release'  Laser Rock
                                       'tag_title'  Surrender
                                             'bpm'  88.015
                                    'search_title'  'surrender':1
                                   'search_artist'  'king':1 'tubby':2
                                  'search_release'  'laser':1 'rock':2
                                     'search_rest'  '00reggae':1 'and':15 'dancehall':13 'dub':2 'king':3 'laser':4 'loc':8 'or':11 'reggae':10 'rock':5 'roots':14 'ska':12 'style':9 'surrender':7 'tubby':6
                                    'search_combo'  '00reggae':6 'and':20 'dancehall':18 'dub':7 'king':2B,8 'laser':4C,9 'loc':13 'or':16 'reggae':15 'rock':5C,10 'roots':19 'ska':17 'style':14 'surrender':1A,12 'tubby':3B,11
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  3A
                                           '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-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'dub', 'experimental', 'dub reggae', 'jamaica']
                                        'tag_date'  1992
                                     'discogstags'  ['reggae', 'dub']

============================== file details ==============================
                                           'mtime'  1620521709.6827972  (2021-05-09 02:55:09)
                             'size'  5453916