======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '144'
                                          'artist'  'Shirley & Lee'
                                     'text_people'  ''
                                         'release'  'The Official American Bandstand Library of Rock & Roll (2 of 8)'
                                           'title'  'Let The Good Times Roll'
                                           'quals'  ("['Q-JZFKS-2', '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-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalists', 'doo wop', 'rhythm and blues', 'soul', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '157'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '141.019'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Official American Bandstand Library of Rock & Roll (2 of 8)'
'TBPM' (BPM (beats per minute))                     '141.019'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         'Let The Good Times Roll'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '144666'
'TPE1' (Lead performer(s)/Soloist(s))               'Shirley & Lee'
'TRCK' (Track number/Position in set)               '157'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['female vocalists', 'doo wop', 'rhythm and blues', 'soul', 'oldies']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                        '+1.30 dB'
'TXXX:replaygain_track_peak'                        '0.504254'

========================== row from database ==========================
                                              'id'  1443387
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-157 - Shirley & Lee - Let The Good Times Roll.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  144
                                           'genre'  prerock-unsorted
                                        'filesize'  5800981
                                           'mtime'  1620387577
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 157 prerock unsorted
                                      'tag_artist'  Shirley & Lee
                                     'tag_release'  The Official American Bandstand Library of Rock & Roll (2 of 8)
                                       'tag_title'  Let The Good Times Roll
                                             'bpm'  141.019
                                    'search_title'  'good':3 'let':1 'roll':5 'the':2 'times':4
                                   'search_artist'  'lee':2 'shirley':1
                                  'search_release'  '2':9,10 '8':11,12 'american':3 'bandstand':4 'library':5 'of':6 'official':2 'rock':7 'roll':8 'the':1
                                     'search_rest'  '00oldiepop':5 '157':7 '1956':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':24 '157':26 '1956':25 '2':16C,17C '8':18C,19C 'american':10C 'bandstand':11C 'country':23 'exotica':21 'good':3A 'jazz':20 'lee':7B 'let':1A 'library':12C 'of':13C 'official':9C 'oldies':22 'prerock':27 'rock':14C 'roll':5A,15C 'shirley':6B 'the':2A,8C 'times':4A 'unsorted':28
                                    'tag_tracknum'  157
                                      'num_images'  1
                                             'key'  4A
                                           '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-3', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['female vocalists', 'doo wop', 'rhythm and blues', 'soul', 'oldies']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387576.6436796  (2021-05-07 13:39:36)
                             'size'  5800981