======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '154'
                                          'artist'  'Jimmy Martin'
                                     'text_people'  ''
                                         'release'  '1969-1974 (Warped 7047)'
                                           'title'  'Help Thy Brother'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'all', 'bluegrass', 'two first names']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '108.5'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '1969-1974 (Warped 7047)'
'TBPM' (BPM (beats per minute))                     '108.5'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Help Thy Brother'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmy Martin'
'TPE2' (Band/orchestra/accompaniment)               'Jimmy Martin'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['country', 'all', 'bluegrass', 'two first names']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.519756'

========================== row from database ==========================
                                              'id'  646941
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Warped Records Collection/Warped 7047 - Jimmy Martin - Classics 1969-1974 (2010)/14 - Help Thy Brother.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  154
                                           'genre'  loc-namerica-country
                                        'filesize'  7065100
                                           'mtime'  1621628953
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Records Collection Classics (2010) 14 loc namerica country
                                      'tag_artist'  Jimmy Martin
                                     'tag_release'  1969-1974 (Warped 7047)
                                       'tag_title'  Help Thy Brother
                                             'bpm'  108.5
                                    'search_title'  'brother':3 'help':1 'thy':2
                                   'search_artist'  'jimmy':1 'martin':2
                                  'search_release'  '1969':1 '19691974':3 '1974':2 '7047':6,7 'warped':4,5
                                     'search_rest'  '2010':4,5 'classics':3 'collection':2 'country':8 'loc':6 'namerica':7 'records':1
                                    'search_combo'  '1969':6C '19691974':8C '1974':7C '2010':16,17 '7047':11C,12C 'brother':3A 'classics':15 'collection':14 'country':20 'help':1A 'jimmy':4B 'loc':18 'martin':5B 'namerica':19 'records':13 'thy':2A 'warped':9C,10C
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'all', 'bluegrass', 'two first names']
                                        'tag_date'  2010
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621628952.5503714  (2021-05-21 22:29:12)
                             'size'  7065100