======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '211'
                                          'artist'  'Grace  Kerns & Reed Miller'
                                     'text_people'  ''
                                         'release'  'Columbia  1982'
                                           'title'  "They Didn't Believe Me"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1915'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '120.8'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TALB' (Album/Movie/Show title)                     'Columbia  1982'
'TBPM' (BPM (beats per minute))                     '120.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1915'
'TIT2' (Title/songname/content description)         "They Didn't Believe Me"
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '211000'
'TPE1' (Lead performer(s)/Soloist(s))               'Grace  Kerns & Reed Miller'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.54 dB'
'TXXX:replaygain_track_peak'                        '0.571644'

========================== row from database ==========================
                                              'id'  1516803
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1915/Grace Kerns & Reed Miller - They Didn_t Believe Me 1915.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  211
                                           'genre'  prerock-unsorted
                                        'filesize'  4281555
                                           'mtime'  1621697791
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1915 Didn_t 1915 prerock unsorted
                                      'tag_artist'  Grace  Kerns & Reed Miller
                                     'tag_release'  Columbia  1982
                                       'tag_title'  They Didn't Believe Me
                                             'bpm'  120.8
                                    'search_title'  'believe':5 'didn':2 'didnt':4 'me':6 't':3 'they':1
                                   'search_artist'  'grace':1 'kerns':2 'miller':4 'reed':3
                                  'search_release'  '1982':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1915':6 'country':4 'didn':7 'exotica':2 'jazz':1 'oldies':3 'prerock':9 't':8 'unsorted':10
                                    'search_combo'  '00oldiepop':17 '1915':18 '1982':12C 'believe':5A 'columbia':11C 'country':16 'didn':2A,19 'didnt':4A 'exotica':14 'grace':7B 'jazz':13 'kerns':8B 'me':6A 'miller':10B 'oldies':15 'prerock':21 'reed':9B 't':3A,20 'they':1A 'unsorted':22
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1915
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697790.665107  (2021-05-22 17:36:30)
                             'size'  4281555