======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '169'
                                          'artist'  'Leo Reisman & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Our Big Love Scene'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-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-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', '1401fh', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '251'
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '134.199'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1934 and peaked at #17 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 1934 and peaked at #'
'TBPM' (BPM (beats per minute))                     '134.199'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'Our Big Love Scene'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Leo Reisman & His Orchestra'
'TRCK' (Track number/Position in set)               '251'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['big band', 'jazz', '1401fh', 'oldies', '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'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.96 dB'
'TXXX:replaygain_track_peak'                        '0.566340'

========================== row from database ==========================
                                              'id'  1455239
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/Our big love scene - Leo Reisman and his orchestra (vocal by Frank Luther).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  169
                                           'genre'  prerock-band
                                        'filesize'  2711636
                                           'mtime'  1620560269
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 big love scene and his orchestra (vocal by Frank Luther) prerock band
                                      'tag_artist'  Leo Reisman & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  Our Big Love Scene
                                             'bpm'  134.199
                                    'search_title'  'big':2 'love':3 'our':1 'scene':4
                                   'search_artist'  'his':3 'leo':1 'orchestra':4 'reisman':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 'and':10 'band':20 'big':7 'by':15 'country':4 'exotica':2 'frank':16 'his':11 'jazz':1 'love':8 'luther':17,18 'oldies':3 'orchestra':12 'prerock':19 'scene':9 'vocal':13,14
                                    'search_combo'  '00oldiepop':13 '1934':14 'and':18 'band':28 'big':2A,15 'by':23 'country':12 'exotica':10 'frank':24 'his':7B,19 'jazz':9 'leo':5B 'love':3A,16 'luther':25,26 'oldies':11 'orchestra':8B,20 'our':1A 'prerock':27 'reisman':6B 'scene':4A,17 'vocal':21,22
                                    'tag_tracknum'  251
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', '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'  ['big band', 'jazz', '1401fh', 'oldies', 'swing']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560269.274284  (2021-05-09 13:37:49)
                             'size'  2711636