======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '176'
                                          'artist'  'Claude Thornhill & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Snowfall (Theme Song)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swing', 'jazz', 'big band', 'sleepy', 'midnite']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1941'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '140.628'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['Debuted 1941 and peaked at #15 on Various Charts. Source: Pop Hits. '
 'Label/Number: Columbia 36268. \r\n',
 'Debuted 1941 and peaked at # on Various Charts. Label/Number: Columbia '
 '36268. Billboard Pop Charts (1940-1954)\r\n']
'COMM:ID3v1 Comment:XXX'                            'Debuted 1941 and peaked at #15'
'COMM:MusicMatch_Preference:eng'                    'None'
'TBPM' (BPM (beats per minute))                     '140.628'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1941'
'TIT2' (Title/songname/content description)         'Snowfall (Theme Song)'
'TKEY' (Initial key)                                '3B'
'TLEN' (Length)                                     '176000'
'TPE1' (Lead performer(s)/Soloist(s))               'Claude Thornhill & His Orchestra'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['swing', 'jazz', 'big band', 'sleepy', 'midnite']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                        '+3.06 dB'
'TXXX:replaygain_track_peak'                        '0.679551'
'UFID:'                                             UFID(owner='', data=b'XL\x00 CH1941_003')

========================== row from database ==========================
                                              'id'  1432409
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1941/ch1941_003 - claude thornhill & his orchestra - snowfall (theme song) 80 m (2.57).mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  176
                                           'genre'  prerock-swing
                                        'filesize'  1769190
                                           'mtime'  1620561740
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1941 ch1941_003 claude thornhill his orchestra snowfall (theme song) 80 (2.57) prerock swing
                                      'tag_artist'  Claude Thornhill & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  Snowfall (Theme Song)
                                             'bpm'  140.628
                                    'search_title'  'snowfall':1 'song':4,5 'theme':2,3
                                   'search_artist'  'claude':1 'his':3 'orchestra':4 'thornhill':2
                                  'search_release'  
                                     'search_rest'  '003':8 '00oldiepop':5 '1941':6 '2':19 '257':21 '57':20 '80':18 'ch1941':7 'claude':9 'country':4 'exotica':2 'his':11 'jazz':1 'oldies':3 'orchestra':12 'prerock':22 'snowfall':13 'song':16,17 'swing':23 'theme':14,15 'thornhill':10
                                    'search_combo'  '003':17 '00oldiepop':14 '1941':15 '2':28 '257':30 '57':29 '80':27 'ch1941':16 'claude':6B,18 'country':13 'exotica':11 'his':8B,20 'jazz':10 'oldies':12 'orchestra':9B,21 'prerock':31 'snowfall':1A,22 'song':4A,5A,25,26 'swing':32 'theme':2A,3A,23,24 'thornhill':7B,19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', '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-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['swing', 'jazz', 'big band', 'sleepy', 'midnite']
                                        'tag_date'  1941
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561739.8053184  (2021-05-09 14:02:19)
                             'size'  1769190