======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '183'
                                          'artist'  'Jeffrey Bland'
                                     'text_people'  ''
                                         'release'  '7"'
                                           'title'  'My Skies Were Black (But You Made Them Grey)[instrum]'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '95.438'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '365 Days Project'
'COMM:ID3v1 Comment:XXX'                            '365 Days Project'
'COMM:iTunNORM:eng'                                 (' 0000001D 00000023 00000284 00000177 0001BE53 0002AA3E 000028EB 0000274E '
 '0002BDD6 0002AA3E')
'COMM:iTunes_CDDB_1:eng'                            'B109610E+180258+14+150+15013+28795+40422+52298+68081+80549+91765+103951+116083+128809+144142+156068+167693'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '2'
'TALB' (Album/Movie/Show title)                     '7"'
'TBPM' (BPM (beats per minute))                     '95.438'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1968'
'TENC' (Encoded by)                                 'iTunes v4.7'
'TIT2' (Title/songname/content description)         'My Skies Were Black (But You Made Them Grey)[instrum]'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jeffrey Bland'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.85 dB'
'TXXX:replaygain_track_peak'                        '0.904305'

========================== row from database ==========================
                                              'id'  1302135
                                            'path'  /data/Music/Bulk/00poprockelectronic/11/324_2_Jeffrey_Bland_-_My_Skies_Were_Black_But_You_Made_Them_Grey_instrumental.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  183
                                           'genre'  electronic-unsorted
                                        'filesize'  4883559
                                           'mtime'  1620565363
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 11 324_2_Jeffrey_Bland_ _My_Skies_Were_Black_But_You_Made_Them_Grey_instrumental electronic unsorted
                                      'tag_artist'  Jeffrey Bland
                                     'tag_release'  7"
                                       'tag_title'  My Skies Were Black (But You Made Them Grey)[instrum]
                                             'bpm'  95.438
                                    'search_title'  'black':4 'but':5,6 'grey':10 'greyinstrum':12 'instrum':11 'made':8 'my':1 'skies':2 'them':9 'were':3 'you':7
                                   'search_artist'  'bland':2 'jeffrey':1
                                  'search_release'  '7':1
                                     'search_rest'  '00poprockelectronic':1 '2':3 '324':2 'black':9 'bland':5 'but':10 'electronic':16 'grey':14 'instrumental':15 'jeffrey':4 'made':12 'my':6 'skies':7 'them':13 'unsorted':17 'were':8 'you':11
                                    'search_combo'  '00poprockelectronic':16 '2':18 '324':17 '7':15C 'black':4A,24 'bland':14B,20 'but':5A,6A,25 'electronic':31 'grey':10A,29 'greyinstrum':12A 'instrum':11A 'instrumental':30 'jeffrey':13B,19 'made':8A,27 'my':1A,21 'skies':2A,22 'them':9A,28 'unsorted':32 'were':3A,23 'you':7A,26
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1968
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620565362.5221922  (2021-05-09 15:02:42)
                             'size'  4883559