======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '177'
                                          'artist'  'Kay Kyser'
                                     'text_people'  ''
                                         'release'  '1920s and 1930s popular'
                                           'title'  'Gotta Get Some Shut-Eye'
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                                      'lastfmtags'  "['11', 'jazz vocal', 'jazz', 'big band', '40s', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-big band'
                                             'bpm'  '108.646'
                                             'key'  '6A'
                                        'acoustid'  '9265d13f-8c82-471d-a9de-c8b291eef606'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '1920s and 1930s popular'
'TBPM' (BPM (beats per minute))                     '108.646'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-big band'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Gotta Get Some Shut-Eye'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '177162'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Kay Kyser'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Sony Music Special Products'
'TSO2'                                              'Kyser, Kay'
'TSOP' (Performer sort order)                       'Kyser, Kay'
'TXXX:ASIN'                                         'B00003W0XT'
'TXXX:Acoustid Id'                                  '9265d13f-8c82-471d-a9de-c8b291eef606'
'TXXX:MusicBrainz Artist Id'                        '3e0dd841-267b-4a50-a807-f7020d3a5b4a'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['11', 'jazz vocal', 'jazz', 'big band', '40s', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.39 dB'
'TXXX:replaygain_track_peak'                        '0.402067'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'efca7ace-fe61-4b55-aafb-64683e0f69d3')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Kay Kyser and his Kollege of Musical Knowledge, Sonny Mason - Ma, She_s Making Eyes at Me 1938.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  177
                                           'genre'  prerock-jb-jazz-o-big band
                                        'filesize'  2862981
                                           'mtime'  1620524644
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop his Kollege of Musical Knowledge, Sonny Mason Ma, She_s Making Eyes at Me 1938 prerock jb jazz big band
                                      'tag_artist'  Kay Kyser
                                     'tag_release'  1920s and 1930s popular
                                       'tag_title'  Gotta Get Some Shut-Eye
                                             'bpm'  108.646
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                                   'search_artist'  'kay':1 'kyser':2
                                  'search_release'  '1920s':1 '1930s':3 'and':2 'popular':4
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                                    'search_combo'  '00oldiepop':17 '1920s':9C '1930s':11C '1938':34 'and':10C 'at':32 'band':38 'big':37 'country':16 'exotica':14 'eye':5A 'eyes':31 'get':2A 'gotta':1A 'his':18 'jazz':13 'jb':36 'kay':7B 'knowledge':22,23 'kollege':19 'kyser':8B 'ma':26,27 'making':30 'mason':25 'me':33 'musical':21 'of':20 'oldies':15 'popular':12C 'prerock':35 's':29 'she':28 'shut':4A 'shuteye':6A 'some':3A 'sonny':24
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['11', 'jazz vocal', 'jazz', 'big band', '40s', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524643.7343693  (2021-05-09 03:44:03)
                             'size'  2862981