======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '188'
                                          'artist'  'Ben Pollack & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Sleepy Head'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spotify', 'big band swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '201'
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '116.722'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1934 and peaked at #13 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 1934 and peaked at #'
'TBPM' (BPM (beats per minute))                     '116.722'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'Sleepy Head'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ben Pollack & His Orchestra'
'TRCK' (Track number/Position in set)               '201'
'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'                                   ['spotify', 'big band swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'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'                        '+1.78 dB'
'TXXX:replaygain_track_peak'                        '0.453317'

========================== row from database ==========================
                                              'id'  1455155
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/Sleepy head - Ben Pollack and his orchestra (vocal by Joe Harris).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  188
                                           'genre'  prerock-band
                                        'filesize'  3028031
                                           'mtime'  1620560306
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 head and his orchestra (vocal by Joe Harris) prerock band
                                      'tag_artist'  Ben Pollack & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  Sleepy Head
                                             'bpm'  116.722
                                    'search_title'  'head':2 'sleepy':1
                                   'search_artist'  'ben':1 'his':3 'orchestra':4 'pollack':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 'and':8 'band':18 'by':13 'country':4 'exotica':2 'harris':15,16 'head':7 'his':9 'jazz':1 'joe':14 'oldies':3 'orchestra':10 'prerock':17 'vocal':11,12
                                    'search_combo'  '00oldiepop':11 '1934':12 'and':14 'band':24 'ben':3B 'by':19 'country':10 'exotica':8 'harris':21,22 'head':2A,13 'his':5B,15 'jazz':7 'joe':20 'oldies':9 'orchestra':6B,16 'pollack':4B 'prerock':23 'sleepy':1A 'vocal':17,18
                                    'tag_tracknum'  201
                                      'num_images'  0
                                             'key'  6A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['spotify', 'big band swing']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560306.168438  (2021-05-09 13:38:26)
                             'size'  3028031