======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '179'
                                          'artist'  'Stanley Cowell'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Travelin Man'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['free jazz', 'post bop', 'piano', 'jazz', 'sonicuniverse']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '112.758'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000240 00000321 00001010'
'COMM:iTunNORM:eng'                                 (' 00000240 00000321 00001010 00003059 00007F13 000176C8 00007004 00007145 '
 '00020AB8 00015B92')
'MCDI' (Music CD identifier)                        MCDI(data=b'9\x00+\x009\x006\x00+\x005\x00A\x00C\x003\x00+\x009\x00C\x005\x006\x00+\x001\x001\x00A\x002\x006\x00+\x001\x004\x00C\x00E\x00E\x00+\x001\x00A\x00D\x007\x009\x00+\x001\x00E\x002\x000\x005\x00+\x002\x004\x000\x00E\x00C\x00+\x002\x006\x008\x004\x00F\x00+\x002\x009\x00F\x001\x00A\x00\x00\x00')
'PRIV:AverageLevel:8\x11\x00\x00'                   PRIV(owner='AverageLevel', data=b'8\x11\x00\x00')
'PRIV:PeakValue:\x99q\x00\x00'                      PRIV(owner='PeakValue', data=b'\x99q\x00\x00')
'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '112.758'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-mor']
'TIT2' (Title/songname/content description)         'Travelin Man'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '179360'
'TPE1' (Lead performer(s)/Soloist(s))               'Stanley Cowell'
'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'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['free jazz', 'post bop', 'piano', 'jazz', 'sonicuniverse']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.58 dB'
'TXXX:replaygain_track_peak'                        '0.526183'

========================== row from database ==========================
                                              'id'  1509786
                                            'path'  /data/Music/Bulk/sns/Stanley Cowell - Travelin_ Man.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  179
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  7270328
                                           'mtime'  1621472899
                                   'redo_metaread'  0
                                        'rest_str'   sns Travelin_ set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Stanley Cowell
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Travelin Man
                                             'bpm'  112.758
                                    'search_title'  'man':2 'travelin':1
                                   'search_artist'  'cowell':2 'stanley':1
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'mor':9 'pl':4 'set':3,6,8 'shirleyspinoza':5,7 'sns':1 'travelin':2
                                    'search_combo'  'cowell':4B 'man':2A 'mor':15 'pl':10 'set':9,12,14 'shirley':5C 'shirleyspinoza':11,13 'sns':7 'spinoza':6C 'stanley':3B 'travelin':1A,8
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['free jazz', 'post bop', 'piano', 'jazz', 'sonicuniverse']
                                        'tag_date'  
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1621472899.1314898  (2021-05-20 03:08:19)
                             'size'  7270328