======================== unified (from filesystem) ========================
                                         'bitrate'  '135.688'
                                        'duration'  '106'
                                          'artist'  'Oleg Kostrow'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'The Plastic Skeleton Of A Dream'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['russian', 'new weird russia', 'electronic', 'experimental', 'surf']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '108.181'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:W\x1f\x00\x00'                   PRIV(owner='AverageLevel', data=b'W\x1f\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '108.181'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'The Plastic Skeleton Of A Dream'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Oleg Kostrow'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['russian', 'new weird russia', 'electronic', 'experimental', 'surf']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.01 dB'
'TXXX:replaygain_track_peak'                        '0.277574'

========================== row from database ==========================
                                              'id'  949239
                                            'path'  /data/Music/Bulk/sns/oleg kostrow - the plastic skeleton of a dream.mp3
                                         'working'  None
                                         'bitrate'  135
                                    'duration_sec'  106
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  1817366
                                           'mtime'  1620357266
                                   'redo_metaread'  0
                                        'rest_str'   sns oleg kostrow the plastic skeleton of dream set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Oleg Kostrow
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  The Plastic Skeleton Of A Dream
                                             'bpm'  108.181
                                    'search_title'  'a':5 'dream':6 'of':4 'plastic':2 'skeleton':3 'the':1
                                   'search_artist'  'kostrow':2 'oleg':1
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'dream':8 'kostrow':3 'mor':15 'of':7 'oleg':2 'pl':10 'plastic':5 'set':9,12,14 'shirleyspinoza':11,13 'skeleton':6 'sns':1 'the':4
                                    'search_combo'  'a':5A 'dream':6A,18 'kostrow':8B,13 'mor':25 'of':4A,17 'oleg':7B,12 'pl':20 'plastic':2A,15 'set':19,22,24 'shirley':9C 'shirleyspinoza':21,23 'skeleton':3A,16 'sns':11 'spinoza':10C 'the':1A,14
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['russian', 'new weird russia', 'electronic', 'experimental', 'surf']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620357266.0134382  (2021-05-07 05:14:26)
                             'size'  1817366