======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '192'
                                          'artist'  'Guy Lombardo & His Royal Canadians'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The Sweetest Music This Side Of Heaven'
                                           '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-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'classic swing', 'christmas', 'swing', 'canadian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '300'
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '122.733'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '122.733'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'The Sweetest Music This Side Of Heaven'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Guy Lombardo And His Royal Canadians'
'TPE2' (Band/orchestra/accompaniment)               'Guy Lombardo & His Royal Canadians'
'TRCK' (Track number/Position in set)               '300'
'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'                                   ['jazz', 'classic swing', 'christmas', 'swing', 'canadian']
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+10.02 dB'
'TXXX:replaygain_track_peak'                        '0.107451'
'UFID:'                                             UFID(owner='', data=b'XL\x00 1934_300')

========================== row from database ==========================
                                              'id'  679440
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/186 guy lombardo & royal canadians - the sweetest music this side of heaven.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  192
                                           'genre'  prerock-swing
                                        'filesize'  1540101
                                           'mtime'  1620560348
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 186 guy lombardo royal canadians the sweetest music this side of heaven prerock swing
                                      'tag_artist'  Guy Lombardo & His Royal Canadians
                                     'tag_release'  None
                                       'tag_title'  The Sweetest Music This Side Of Heaven
                                             'bpm'  122.733
                                    'search_title'  'heaven':7 'music':3 'of':6 'side':5 'sweetest':2 'the':1 'this':4
                                   'search_artist'  'canadians':5 'guy':1 'his':3 'lombardo':2 'royal':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '186':7 '1934':6 'canadians':11 'country':4 'exotica':2 'guy':8 'heaven':18 'jazz':1 'lombardo':9 'music':14 'of':17 'oldies':3 'prerock':19 'royal':10 'side':16 'sweetest':13 'swing':20 'the':12 'this':15
                                    'search_combo'  '00oldiepop':17 '186':19 '1934':18 'canadians':12B,23 'country':16 'exotica':14 'guy':8B,20 'heaven':7A,30 'his':10B 'jazz':13 'lombardo':9B,21 'music':3A,26 'of':6A,29 'oldies':15 'prerock':31 'royal':11B,22 'side':5A,28 'sweetest':2A,25 'swing':32 'the':1A,24 'this':4A,27
                                    'tag_tracknum'  300
                                      'num_images'  0
                                             'key'  6A
                                           '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-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'  ['jazz', 'classic swing', 'christmas', 'swing', 'canadian']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560347.5547495  (2021-05-09 13:39:07)
                             'size'  1540101