======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '153'
                                          'artist'  'Georgia White'
                                     'text_people'  ''
                                         'release'  'DOCD 5302'
                                           'title'  "I'm So Glad I'm 21 Today"
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'boogie', 'female vocalists', 'delta blues']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '99.128'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'TALB' (Album/Movie/Show title)                     'DOCD 5302'
'TBPM' (BPM (beats per minute))                     '99.128'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '1937'
'TIT2' (Title/songname/content description)         "I'm So Glad I'm 21 Today"
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Georgia White'
'TRCK' (Track number/Position in set)               '17'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['blues', 'boogie', 'female vocalists', 'delta blues']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.05 dB'
'TXXX:replaygain_track_peak'                        '0.526075'

========================== row from database ==========================
                                              'id'  1501433
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/DOCD 5302 - Georgia White 02 (1936-1937) 128/Georgia White - 02-17 - I_m So Glad I_m 21 Today (19370128).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  153
                                           'genre'  prerock-jb-blues
                                        'filesize'  2461591
                                           'mtime'  1620402270
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country (1936 1937) 128 17 I_m I_m (19370128) prerock jb blues
                                      'tag_artist'  Georgia White
                                     'tag_release'  DOCD 5302
                                       'tag_title'  I'm So Glad I'm 21 Today
                                             'bpm'  99.128
                                    'search_title'  '21':6 'glad':5 'i':1 'im':3 'm':2 'so':4 'today':7
                                   'search_artist'  'georgia':1 'white':2
                                  'search_release'  '5302':2 'docd':1
                                     'search_rest'  '128':9 '1936':5,6 '1937':7,8 '19370128':12,13 'blues':16 'country':4 'exotica':2 'i':10 'jazz':1 'jb':15 'm':11 'oldies':3 'prerock':14
                                    'search_combo'  '128':20 '1936':16,17 '1937':18,19 '19370128':23,24 '21':6A '5302':11C 'blues':27 'country':15 'docd':10C 'exotica':13 'georgia':8B 'glad':5A 'i':1A,21 'im':3A 'jazz':12 'jb':26 'm':2A,22 'oldies':14 'prerock':25 'so':4A 'today':7A 'white':9B
                                    'tag_tracknum'  17
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'boogie', 'female vocalists', 'delta blues']
                                        'tag_date'  1937
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620402269.665889  (2021-05-07 17:44:29)
                             'size'  2461591