======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '124'
                                          'artist'  'Alton Ellis'
                                     'text_people'  ''
                                         'release'  'Sunday Coming'
                                           'title'  "Alton's Groove"
                                           '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-2', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jamaica', 'reggae', 'ska', 'roots', 'rocksteady']"
                                     'discogstags'  "['reggae', 'rocksteady']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '14'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '113.199'
                                             'key'  '10B'
                                        'acoustid'  '115a9904-4b12-41c0-a9e9-ebccfdee6e19'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sunday Coming'
'TBPM' (BPM (beats per minute))                     '113.199'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TDOR' (Original release time)                      '1970'
'TDRC' (Recording time)                             '1995-02-07'
'TIT2' (Title/songname/content description)         "Alton's Groove"
'TKEY' (Initial key)                                '10B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Alton Ellis'
'TPE2' (Band/orchestra/accompaniment)               'Alton Ellis'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Heartbeat Records'
'TRCK' (Track number/Position in set)               '6/14'
'TSO2'                                              'Ellis, Alton'
'TSOP' (Performer sort order)                       'Ellis, Alton'
'TXXX:ASIN'                                         'B000000473'
'TXXX:Acoustid Id'                                  '115a9904-4b12-41c0-a9e9-ebccfdee6e19'
'TXXX:BARCODE'                                      '011661351127'
'TXXX:CATALOGNUMBER'                                'CDHB3511'
'TXXX:MusicBrainz Album Artist Id'                  'b04d9207-306c-42db-8b6a-c94d49b4b08a'
'TXXX:MusicBrainz Album Id'                         '82afdec3-d900-4fa9-a960-e730504e777c'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'b04d9207-306c-42db-8b6a-c94d49b4b08a'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['reggae', 'rocksteady']
'TXXX:involved people'                              'producer'
'TXXX:lastfmtags'                                   ['jamaica', 'reggae', 'ska', 'roots', 'rocksteady']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+5.83 dB'
'TXXX:replaygain_track_peak'                        '0.298470'

========================== row from database ==========================
                                              'id'  1507872
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Alton Ellis - Sunday Coming/06 - Alton Ellis - Alton_s Groove.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  124
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  1997060
                                           'mtime'  1620520955
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub 06 Alton_s loc style reggae or dub or ska or dancehall dub roots and reggae
                                      'tag_artist'  Alton Ellis
                                     'tag_release'  Sunday Coming
                                       'tag_title'  Alton's Groove
                                             'bpm'  113.199
                                    'search_title'  'alton':1 'altons':3 'groove':4 's':2
                                   'search_artist'  'alton':1 'ellis':2
                                  'search_release'  'coming':2 'sunday':1
                                     'search_rest'  '00reggae':1 'alton':3 'and':12 'dancehall':10 'dub':2 'loc':5 'or':8 'reggae':7 'roots':11 's':4 'ska':9 'style':6
                                    'search_combo'  '00reggae':9 'alton':1A,5B,11 'altons':3A 'and':20 'coming':8C 'dancehall':18 'dub':10 'ellis':6B 'groove':4A 'loc':13 'or':16 'reggae':15 'roots':19 's':2A,12 'ska':17 'style':14 'sunday':7C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', '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-2', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jamaica', 'reggae', 'ska', 'roots', 'rocksteady']
                                        'tag_date'  1995
                                     'discogstags'  ['reggae', 'rocksteady']

============================== file details ==============================
                                           'mtime'  1620520954.8781796  (2021-05-09 02:42:34)
                             'size'  1997060