======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '165'
                                          'artist'  'Ricky Zahnd & The Blue Jeaners'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "(I'm Gettin') Nuttin' For Christmas"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '161'
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted;set-th-christmas'
                                             'bpm'  '97.600'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '97.600'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-unsorted', 'set-th-christmas']
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         "(I'm Gettin') Nuttin' For Christmas"
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Ricky Zahnd & The Blue Jeaners'
'TRCK' (Track number/Position in set)               '161'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.67 dB'
'TXXX:replaygain_track_peak'                        '0.473661'

========================== row from database ==========================
                                              'id'  1509348
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1955/1955-161 - Ricky Zahnd & The Blue Jeaners - (I_m Gettin_) Nuttin_ For Christmas.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  165
                                           'genre'  prerock-unsorted;set-th-christmas
                                        'filesize'  6688133
                                           'mtime'  1620343035
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1955 1955 161 (I_m Gettin_) Nuttin_ prerock unsorted;set th christmas
                                      'tag_artist'  Ricky Zahnd & The Blue Jeaners
                                     'tag_release'  None
                                       'tag_title'  (I'm Gettin') Nuttin' For Christmas
                                             'bpm'  97.6
                                    'search_title'  'christmas':9 'for':8 'gettin':4,5 'i':1 'im':3 'm':2 'nuttin':6,7
                                   'search_artist'  'blue':4 'jeaners':5 'ricky':1 'the':3 'zahnd':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '161':7 '1955':6 'christmas':21 'country':4 'exotica':2 'gettin':12,13 'i':8,10 'jazz':1 'm':9,11 'nuttin':14 'oldies':3 'prerock':15 'set':17,19 'th':20 'unsorted':16,18
                                    'search_combo'  '00oldiepop':19 '161':21 '1955':20 'blue':13B 'christmas':9A,35 'country':18 'exotica':16 'for':8A 'gettin':4A,5A,26,27 'i':1A,22,24 'im':3A 'jazz':15 'jeaners':14B 'm':2A,23,25 'nuttin':6A,7A,28 'oldies':17 'prerock':29 'ricky':10B 'set':31,33 'th':34 'the':12B 'unsorted':30,32 'zahnd':11B
                                    'tag_tracknum'  161
                                      'num_images'  1
                                             '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-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343035.4011178  (2021-05-07 01:17:15)
                             'size'  6688133