======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '272'
                                          'artist'  'Son House'
                                     'text_people'  ''
                                         'release'  'Gospel at Newport: Recorded Live at the Newport Festival 1959 & 1963-66'
                                           'title'  'John the Revelator'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country blues', 'blues', 'delta blues', 'folk', 'classic blues']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '19'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-namerica'
                                             'bpm'  '145.790'
                                             'key'  '2A'
                                        'acoustid'  '46c25e81-60a2-4cd7-a043-82cadec5c2ac'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Gospel at Newport: Recorded Live at the Newport Festival 1959 & 1963-66'
'TBPM' (BPM (beats per minute))                     '145.790'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1995-01-31'
'TIT2' (Title/songname/content description)         'John the Revelator'
'TKEY' (Initial key)                                '2A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Son House'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Vanguard Records'
'TRCK' (Track number/Position in set)               '15/19'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'House, Son'
'TXXX:Acoustid Id'                                  '46c25e81-60a2-4cd7-a043-82cadec5c2ac'
'TXXX:DISCID'                                       '1c122113'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '2acaba2b-6b67-4132-a714-918e17e462d4'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '8c87dda0-be58-4e48-a3b5-2626f26364c7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['country blues', 'blues', 'delta blues', 'folk', 'classic blues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.56 dB'
'TXXX:replaygain_track_peak'                        '0.928713'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'517906a7-e874-423a-9148-57bc425b7e5f')

========================== row from database ==========================
                                              'id'  499255
                                            'path'  /data/Music/Bulk/00localcharacter/gospel - gospel at newport - 1959 & 1963-66 (vanguard,1995)/15-john the revelator _ son house.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  272
                                           'genre'  loc-namerica
                                        'filesize'  8708146
                                           'mtime'  1621629923
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter gospel gospel newport (vanguard,1995) 15 john revelator _ son house loc namerica
                                      'tag_artist'  Son House
                                     'tag_release'  Gospel at Newport: Recorded Live at the Newport Festival 1959 & 1963-66
                                       'tag_title'  John the Revelator
                                             'bpm'  145.79
                                    'search_title'  'john':1 'revelator':3 'the':2
                                   'search_artist'  'house':2 'son':1
                                  'search_release'  '1959':9 '1963':10 '196366':12 '66':11 'at':2 'festival':8 'gospel':1 'live':6 'newport':3,4 'recorded':5 'the':7
                                     'search_rest'  '1995':4,6 'gospel':1 'house':10 'john':7 'loc':11 'namerica':12 'newport':2 'revelator':8 'son':9 'vanguard':3,5
                                    'search_combo'  '1959':14C '1963':15C '196366':17C '1995':21,23 '66':16C 'at':7C 'festival':13C 'gospel':6C,18 'house':5B,27 'john':1A,24 'live':11C 'loc':28 'namerica':29 'newport':8C,9C,19 'recorded':10C 'revelator':3A,25 'son':4B,26 'the':2A,12C 'vanguard':20,22
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country blues', 'blues', 'delta blues', 'folk', 'classic blues']
                                        'tag_date'  1995
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1621629922.6223907  (2021-05-21 22:45:22)
                             'size'  8708146