======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '176'
                                          'artist'  'Sam Manning'
                                     'text_people'  ''
                                         'release'  'Africa In America 1920-1962: Rock, Jazz & Calypso 1'
                                           'title'  'African Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['calypso', 'all', 'trinidad']"
                                     'discogstags'  "['calypso']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '1940'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '142.307'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Africa In America 1920-1962: Rock, Jazz & Calypso 1'
'TBPM' (BPM (beats per minute))                     '142.307'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1940'
'TIT2' (Title/songname/content description)         'African Blues'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sam Manning'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '05'
'TSO2'                                              'Africa In America 1920-1962: Rock, Jazz & Calypso'
'TSOA' (Album sort order)                           'Africa In America 1920-1962: Rock, Jazz & Calypso 1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'calypso'
'TXXX:lastfmtags'                                   ['calypso', 'all', 'trinidad']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.57 dB'
'TXXX:replaygain_track_peak'                        '0.402222'

========================== row from database ==========================
                                              'id'  1236302
                                            'path'  /data/Music/Bulk/00localcharacter/00africa/Africa In America 1920-1962_ Rock, Jazz/1/05 African Blues.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  176
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  7169533
                                           'mtime'  1620539632
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00africa 1962_ 05 prerock jb jazz unsorted
                                      'tag_artist'  Sam Manning
                                     'tag_release'  Africa In America 1920-1962: Rock, Jazz & Calypso 1
                                       'tag_title'  African Blues
                                             'bpm'  142.307
                                    'search_title'  'african':1 'blues':2
                                   'search_artist'  'manning':2 'sam':1
                                  'search_release'  '1':11 '1920':4 '19201962':6 '1962':5 'africa':1 'america':3 'calypso':10 'in':2 'jazz':9 'rock':7,8
                                     'search_rest'  '00africa':1 '1962':2 'jazz':5 'jb':4 'prerock':3 'unsorted':6
                                    'search_combo'  '00africa':16 '1':15C '1920':8C '19201962':10C '1962':9C,17 'africa':5C 'african':1A 'america':7C 'blues':2A 'calypso':14C 'in':6C 'jazz':13C,20 'jb':19 'manning':4B 'prerock':18 'rock':11C,12C 'sam':3B 'unsorted':21
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['calypso', 'all', 'trinidad']
                                        'tag_date'  1940
                                     'discogstags'  ['calypso']

============================== file details ==============================
                                           'mtime'  1620539632.1409817  (2021-05-09 07:53:52)
                             'size'  7169533