======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '150'
                                          'artist'  'Fats Waller & His Rhythm'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  'The Curse of an Aching Heart'
                                           'quals'  ("['Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-3', 'Q-PIANO-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'fats waller ans his rythm', 'jazz piano', 'piano', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '117.877'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '117.877'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'The Curse of an Aching Heart'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '150474'
'TPE1' (Lead performer(s)/Soloist(s))               'Fats Waller & His Rhythm'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'fats waller ans his rythm', 'jazz piano', 'piano', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.25 dB'
'TXXX:replaygain_track_peak'                        '0.694615'

========================== row from database ==========================
                                              'id'  1141475
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Fats Waller - The Curse Of An Aching Heart 1935.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  150
                                           'genre'  prerock-unsorted
                                        'filesize'  2422784
                                           'mtime'  1620385345
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s Of An 1935 prerock unsorted
                                      'tag_artist'  Fats Waller & His Rhythm
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  The Curse of an Aching Heart
                                             'bpm'  117.877
                                    'search_title'  'aching':5 'an':4 'curse':2 'heart':6 'of':3 'the':1
                                   'search_artist'  'fats':1 'his':3 'rhythm':4 'waller':2
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 '1935':10 'an':9 'country':4 'exotica':2 'jazz':1 'of':8 'oldies':3 'prerock':11 'unsorted':12
                                    'search_combo'  '00oldiepop':19 '1920s':20 '1930s':21 '1935':24 '20s':11C '30s':13C 'aching':5A 'an':4A,23 'and':12C 'country':18 'curse':2A 'exotica':16 'fats':7B 'heart':6A 'his':9B 'jazz':15 'of':3A,22 'oldies':17 'popular':14C 'prerock':25 'rhythm':10B 'the':1A 'unsorted':26 'waller':8B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'fats waller ans his rythm', 'jazz piano', 'piano', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385344.6965783  (2021-05-07 13:02:24)
                             'size'  2422784