======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '126'
                                          'artist'  'Perrey-Kingsley'
                                     'text_people'  'Jean-Jacques Perrey & Gershon Kingsley'
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Spooks in Space'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'post punk', 'space age pop', 'electronic', 'moog']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '137.665'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 000005E9 00000653 00006B1C 00006459 00018E5E 00018E5E 00006ADB 0000658A '
 '0001908B 0001AA65')
'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '137.665'
'TCOM' (Composer)                                   'Jean-Jacques Perrey & Gershon Kingsley'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         'Spooks in Space'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Perrey-Kingsley'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'post punk', 'space age pop', 'electronic', 'moog']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.95 dB'
'TXXX:replaygain_track_peak'                        '0.496389'

========================== row from database ==========================
                                              'id'  949252
                                            'path'  /data/Music/Bulk/sns/Perrey-Kingsley -  Spooks in Space.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  126
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  4234880
                                           'mtime'  1621044088
                                   'redo_metaread'  0
                                        'rest_str'   sns set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Perrey-Kingsley
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Spooks in Space
                                             'bpm'  137.665
                                    'search_title'  'in':2 'space':3 'spooks':1
                                   'search_artist'  'kingsley':2 'perrey':1 'perreykingsley':3
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'mor':8 'pl':3 'set':2,5,7 'shirleyspinoza':4,6 'sns':1
                                    'search_combo'  'in':2A 'kingsley':5B 'mor':16 'perrey':4B 'perreykingsley':6B 'pl':11 'set':10,13,15 'shirley':7C 'shirleyspinoza':12,14 'sns':9 'space':3A 'spinoza':8C 'spooks':1A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-4', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'post punk', 'space age pop', 'electronic', 'moog']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621044088.2187612  (2021-05-15 04:01:28)
                             'size'  4234880