======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '197'
                                          'artist'  'Watson Sisters'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I Always Think I'm Up In Heaven -4-1919"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', '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-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['double-ender 15']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1919'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '110.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '110.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1919'
'TIT2' (Title/songname/content description)         "I Always Think I'm Up In Heaven -4-1919"
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '197000'
'TPE1' (Lead performer(s)/Soloist(s))               'Watson Sisters'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'double-ender 15'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.75 dB'
'TXXX:replaygain_track_peak'                        '0.627208'

========================== row from database ==========================
                                              'id'  1517816
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/veryearly/1919/Watson Sisters - I Always Think I_m Up In Heaven -4-1919.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  197
                                           'genre'  prerock-unsorted
                                        'filesize'  4008547
                                           'mtime'  1620388027
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm veryearly I_m prerock unsorted
                                      'tag_artist'  Watson Sisters
                                     'tag_release'  None
                                       'tag_title'  I Always Think I'm Up In Heaven -4-1919
                                             'bpm'  110.1
                                    'search_title'  '1919':11 '4':10 '41919':12 'always':2 'heaven':9 'i':1,4 'im':6 'in':8 'm':5 'think':3 'up':7
                                   'search_artist'  'sisters':2 'watson':1
                                  'search_release'  
                                     'search_rest'  'i':2 'm':3 'prerock':4 'unsorted':5 'veryearly':1
                                    'search_combo'  '1919':11A '4':10A '41919':12A 'always':2A 'heaven':9A 'i':1A,4A,16 'im':6A 'in':8A 'm':5A,17 'prerock':18 'sisters':14B 'think':3A 'unsorted':19 'up':7A 'veryearly':15 'watson':13B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['double-ender 15']
                                        'tag_date'  1919
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620388026.5701451  (2021-05-07 13:47:06)
                             'size'  4008547