======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '37'
                                          'artist'  'Walt Whitman'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'America 1892'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', "
 "'q-grit-1', 'q-play-2', 'Q-OLDST-1', 'q-chart-2', 'q-drums-1', 'q-other-1', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['poetry', 'christian', 'poet', 'spoken word', 'american']"
                                     'discogstags'  "['non-music']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1892'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '144.4'
                                             'key'  '10A'
                                        '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))                     '144.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1892'
'TIT2' (Title/songname/content description)         'America 1892'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '37000'
'TPE1' (Lead performer(s)/Soloist(s))               'Walt Whitman'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'non-music'
'TXXX:lastfmtags'                                   ['poetry', 'christian', 'poet', 'spoken word', 'american']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.41 dB'
'TXXX:replaygain_track_peak'                        '0.400777'

========================== row from database ==========================
                                              'id'  1476017
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/veryearly/1892/Walt Whitman - America 1892.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  37
                                           'genre'  prerock-unsorted
                                        'filesize'  826097
                                           'mtime'  1620387984
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm veryearly prerock unsorted
                                      'tag_artist'  Walt Whitman
                                     'tag_release'  None
                                       'tag_title'  America 1892
                                             'bpm'  144.4
                                    'search_title'  '1892':2 'america':1
                                   'search_artist'  'walt':1 'whitman':2
                                  'search_release'  
                                     'search_rest'  'prerock':2 'unsorted':3 'veryearly':1
                                    'search_combo'  '1892':2A 'america':1A 'prerock':6 'unsorted':7 'veryearly':5 'walt':3B 'whitman':4B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-piano-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['poetry', 'christian', 'poet', 'spoken word', 'american']
                                        'tag_date'  1892
                                     'discogstags'  ['non-music']

============================== file details ==============================
                                           'mtime'  1620387984.4959552  (2021-05-07 13:46:24)
                             'size'  826097