======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '42'
                                          'artist'  'Shirley & Spinoza'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Garbage'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '32'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '145.476'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000004EA 00000B83 00005CF7'
'COMM:iTunNORM:eng'                                 (' 000004EA 00000B83 00005CF7 0000ECEA 0000805E 00007382 0000825C 0000748A '
 '00008043 00002763')
'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'                  '14'
'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '145.476'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-mor']
'TENC' (Encoded by)                                 'iTunes v4.7'
'TIT2' (Title/songname/content description)         'Garbage'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shirley & Spinoza'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '14/32'
'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'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.65 dB'
'TXXX:replaygain_track_peak'                        '0.509422'

========================== row from database ==========================
                                              'id'  986543
                                            'path'  /data/Music/Bulk/sns/SNSarchive/SBQ2_RunAndCry/15_Garbage.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  42
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  1037851
                                           'mtime'  1620357008
                                   'redo_metaread'  0
                                        'rest_str'   sns SNSarchive SBQ2_RunAndCry 15_Garbage set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Shirley & Spinoza
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Garbage
                                             'bpm'  145.476
                                    'search_title'  'garbage':1
                                   'search_artist'  'shirley':1 'spinoza':2
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  '15':5 'and':16 'cry':17 'garbage':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'  '15':10 'and':21 'cry':22 'garbage':1A,11 'mor':18 'pl':13 'run':20 'runandcry':9 'sbq2':8,19 'set':12,15,17 'shirley':2B,4C 'shirleyspinoza':14,16 'sns':6 'snsarchive':7 'spinoza':3B,5C
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620357008.069389  (2021-05-07 05:10:08)
                             'size'  1037851