======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '83'
                                          'artist'  'Shirley & Spinoza'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Exquisite Scene 1'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '32'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '143.314'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000003B6 0000036A 00005E3D'
'COMM:iTunNORM:eng'                                 (' 000003B6 0000036A 00005E3D 00004907 00013E43 00013E43 00008360 000075EB '
 '00012114 00011939')
'COMM:iTunes_CDDB_1:eng'                            'F3115820+333207+32+150+6435+28944+36990+40303+52828+53670+57390+71311+74855+81426+105905+123984+131280+134463+138930+157458+173158+186415+193956+215965+225718+235986+246900+272382+274336+283116+287307+304681+314400+315715+316449'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '1'
'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '143.314'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-mor']
'TENC' (Encoded by)                                 'iTunes v4.7'
'TIT2' (Title/songname/content description)         'Exquisite Scene 1'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shirley & Spinoza'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '1/32'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.618783'

========================== row from database ==========================
                                              'id'  986826
                                            'path'  /data/Music/Bulk/sns/SNSarchive/SBQ2_RunAndCry/01_Exquisite Scene 1.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  83
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  2030313
                                           'mtime'  1620356991
                                   'redo_metaread'  0
                                        'rest_str'   sns SNSarchive SBQ2_RunAndCry 01_Exquisite set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Shirley & Spinoza
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Exquisite Scene 1
                                             'bpm'  143.314
                                    'search_title'  '1':3 'exquisite':1 'scene':2
                                   'search_artist'  'shirley':1 'spinoza':2
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  '01':5 'and':16 'cry':17 'exquisite':6 'mor':13 'pl':8 'run':15 'runandcry':4 'sbq2':3,14 'set':7,10,12 'shirleyspinoza':9,11 'sns':1 'snsarchive':2
                                    'search_combo'  '01':12 '1':3A 'and':23 'cry':24 'exquisite':1A,13 'mor':20 'pl':15 'run':22 'runandcry':11 'sbq2':10,21 'scene':2A 'set':14,17,19 'shirley':4B,6C 'shirleyspinoza':16,18 'sns':8 'snsarchive':9 'spinoza':5B,7C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620356991.1091075  (2021-05-07 05:09:51)
                             'size'  2030313