======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '174'
                                          'artist'  'Brian Lawrance'
                                     'text_people'  ''
                                         'release'  'Rex  9447'
                                           'title'  'Goodnight Little Skipper (v Brian Lawrance & Three In Harmony) \x1312-1938'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spotify', 'all']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1938'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-male'
                                             'bpm'  '135.365'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'GEOB:SfMarkers'                                    GEOB(encoding=<Encoding.LATIN1: 0>, mime='', filename='', desc='SfMarkers', data=b'\x0c\x00\x00\x00d\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Rex  9447'
'TBPM' (BPM (beats per minute))                     '135.365'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-male'
'TDRC' (Recording time)                             '1938'
'TIT2' (Title/songname/content description)         'Goodnight Little Skipper (v Brian Lawrance & Three In Harmony) \x1312-1938'
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '174000'
'TPE1' (Lead performer(s)/Soloist(s))               'Brian Lawrance'
'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'                                   ['spotify', 'all']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+1.61 dB'
'TXXX:replaygain_track_peak'                        '0.551069'

========================== row from database ==========================
                                              'id'  1427446
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1938/Brian Lawrance - Goodnight Little Skipper (v Brian Lawrance & Three In Harmony) –12-1938.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  174
                                           'genre'  prerock-vocal-male
                                        'filesize'  3521076
                                           'mtime'  1621625737
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop –12 prerock vocal male
                                      'tag_artist'  Brian Lawrance
                                     'tag_release'  Rex  9447
                                       'tag_title'  Goodnight Little Skipper (v Brian Lawrance & Three In Harmony) 12-1938
                                             'bpm'  135.365
                                    'search_title'  '12':12 '121938':14 '1938':13 'brian':6 'goodnight':1 'harmony':10,11 'in':9 'lawrance':7 'little':2 'skipper':3 'three':8 'v':4,5
                                   'search_artist'  'brian':1 'lawrance':2
                                  'search_release'  '9447':2 'rex':1
                                     'search_rest'  '00oldiepop':5 '12':6 'country':4 'exotica':2 'jazz':1 'male':9 'oldies':3 'prerock':7 'vocal':8
                                    'search_combo'  '00oldiepop':23 '12':12A,24 '121938':14A '1938':13A '9447':18C 'brian':6A,15B 'country':22 'exotica':20 'goodnight':1A 'harmony':10A,11A 'in':9A 'jazz':19 'lawrance':7A,16B 'little':2A 'male':27 'oldies':21 'prerock':25 'rex':17C 'skipper':3A 'three':8A 'v':4A,5A 'vocal':26
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6B
                                           '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['spotify', 'all']
                                        'tag_date'  1938
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625737.443931  (2021-05-21 21:35:37)
                             'size'  3521076