======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '183'
                                          'artist'  'Fletcher Henderson'
                                     'text_people'  ''
                                         'release'  'Ken Burns Jazz: Fletcher Henderson'
                                           'title'  'Christopher Columbus'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', 'ragtime', '20s', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  '25'
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing'
                                             'bpm'  '95.214'
                                             'key'  '6A'
                                        'acoustid'  'b6e4fe97-ab8c-440f-b90d-88e31432c44f'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Ken Burns Jazz: Fletcher Henderson'
'TBPM' (BPM (beats per minute))                     '95.214'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-swing'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Christopher Columbus'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '183913'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Fletcher Henderson'
'TPE2' (Band/orchestra/accompaniment)               'Fletcher Henderson'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Legacy'
'TRCK' (Track number/Position in set)               '20/25'
'TSO2'                                              'Henderson, Fletcher'
'TSOP' (Performer sort order)                       'Henderson, Fletcher'
'TXXX:ASIN'                                         'B000050HVU'
'TXXX:Acoustid Id'                                  'b6e4fe97-ab8c-440f-b90d-88e31432c44f'
'TXXX:BARCODE'                                      '074646144725'
'TXXX:CATALOGNUMBER'                                'CK 61447'
'TXXX:MusicBrainz Album Artist Id'                  'f47d1c94-c3e3-4c84-a42a-6c33e0032839'
'TXXX:MusicBrainz Album Id'                         '28a7d7c6-9b18-47ae-b5ee-95c4de261bea'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'f47d1c94-c3e3-4c84-a42a-6c33e0032839'
'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'                                   ['big band', 'jazz', 'ragtime', '20s', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.72 dB'
'TXXX:replaygain_track_peak'                        '0.524007'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'08b5fe04-c584-4329-9599-f0830b9aa8e4')

========================== row from database ==========================
                                              'id'  1142732
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Fletcher Henderson & His Orchestra - Christopher Columbus 1936.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  183
                                           'genre'  prerock-jb-jazz-soft-swing
                                        'filesize'  2953216
                                           'mtime'  1620524517
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular & His Orchestra 1936 prerock jb jazz soft swing
                                      'tag_artist'  Fletcher Henderson
                                     'tag_release'  Ken Burns Jazz: Fletcher Henderson
                                       'tag_title'  Christopher Columbus
                                             'bpm'  95.214
                                    'search_title'  'christopher':1 'columbus':2
                                   'search_artist'  'fletcher':1 'henderson':2
                                  'search_release'  'burns':2 'fletcher':5 'henderson':6 'jazz':3,4 'ken':1
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 '1936':12 'and':7 'country':4 'exotica':2 'his':10 'jazz':1 'jb':14 'oldies':3 'orchestra':11 'popular':9 'prerock':13 'soft':15 'swing':16
                                    'search_combo'  '00oldiepop':15 '1920s':16 '1930s':18 '1936':22 'and':17 'burns':6C 'christopher':1A 'columbus':2A 'country':14 'exotica':12 'fletcher':3B,9C 'henderson':4B,10C 'his':20 'jazz':7C,8C,11 'jb':24 'ken':5C 'oldies':13 'orchestra':21 'popular':19 'prerock':23 'soft':25 'swing':26
                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['big band', 'jazz', 'ragtime', '20s', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524517.1135936  (2021-05-09 03:41:57)
                             'size'  2953216