======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '512'
                                          'artist'  'Charles Mingus'
                                     'text_people'  ''
                                         'release'  'The Complete Birdland Broadcasts 1961-1962'
                                           'title'  'My Search'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['post bop', 'jazz', 'avant garde', 'bass', 'bebop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '8'
                                            'date'  '1962'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-bebop or cool or beat'
                                             'bpm'  '99'
                                             'key'  '9B'
                                        'acoustid'  '5b80b2eb-b48f-4353-b1f2-c108563561a5'
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Track 6'
'TALB' (Album/Movie/Show title)                     'The Complete Birdland Broadcasts 1961-1962'
'TBPM' (BPM (beats per minute))                     '99'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-bebop or cool or beat'
'TDOR' (Original release time)                      '1990'
'TDRC' (Recording time)                             '1962'
'TIT2' (Title/songname/content description)         'My Search'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Charles Mingus'
'TPE2' (Band/orchestra/accompaniment)               'Charles Mingus'
'TPOS' (Part of a set)                              '3/3'
'TRCK' (Track number/Position in set)               '8/8'
'TSO2'                                              'Mingus, Charles'
'TSOP' (Performer sort order)                       'Mingus, Charles'
'TXXX:Acoustid Id'                                  '5b80b2eb-b48f-4353-b1f2-c108563561a5'
'TXXX:Artists'                                      'Charles Mingus'
'TXXX:MusicBrainz Album Artist Id'                  'f3b8e107-abe8-4743-b6a3-4a4ee995e71f'
'TXXX:MusicBrainz Album Id'                         '31dff79b-ab37-4847-99b5-b83e314c1f4c'
'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'broadcast/live'
'TXXX:MusicBrainz Artist Id'                        'f3b8e107-abe8-4743-b6a3-4a4ee995e71f'
'TXXX:MusicBrainz Release Group Id'                 'baa02f86-e25d-39ec-a67c-c5c2c28d1da7'
'TXXX:MusicBrainz Release Track Id'                 '1f6a6d90-3735-472f-8d81-3e45ca9f072f'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['post bop', 'jazz', 'avant garde', 'bass', 'bebop']
'TXXX:originalyear'                                 '1990'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.338164'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'61eba8ea-4c17-45cf-984e-0bea0466818f')

========================== row from database ==========================
                                              'id'  1509202
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/complete birdland broadcasts 1/06 The Search (I Can_t Get Starte.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  512
                                           'genre'  prerock-jb-jazz-bebop or cool or beat
                                        'filesize'  8205341
                                           'mtime'  1620524049
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country complete birdland broadcasts 06 (I Can_t Get Starte prerock jb jazz bebop or cool or beat
                                      'tag_artist'  Charles Mingus
                                     'tag_release'  The Complete Birdland Broadcasts 1961-1962
                                       'tag_title'  My Search
                                             'bpm'  99.0
                                    'search_title'  'my':1 'search':2
                                   'search_artist'  'charles':1 'mingus':2
                                  'search_release'  '1961':5 '19611962':7 '1962':6 'birdland':3 'broadcasts':4 'complete':2 'the':1
                                     'search_rest'  'beat':19 'bebop':16 'birdland':6 'broadcasts':7 'can':10 'complete':5 'cool':18 'country':4 'exotica':2 'get':12 'i':8,9 'jazz':1 'jb':15 'oldies':3 'or':17 'prerock':14 'starte':13 't':11
                                    'search_combo'  '1961':9C '19611962':11C '1962':10C 'beat':30 'bebop':27 'birdland':7C,17 'broadcasts':8C,18 'can':21 'charles':3B 'complete':6C,16 'cool':29 'country':15 'exotica':13 'get':23 'i':19,20 'jazz':12 'jb':26 'mingus':4B 'my':1A 'oldies':14 'or':28 'prerock':25 'search':2A 'starte':24 't':22 'the':5C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['post bop', 'jazz', 'avant garde', 'bass', 'bebop']
                                        'tag_date'  1962
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524049.2596173  (2021-05-09 03:34:09)
                             'size'  8205341