======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '276'
                                          'artist'  'Toychestra'
                                     'text_people'  ''
                                         'release'  'What Leave Behind'
                                           'title'  'Fellini'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', '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-4', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'jazz', 'toypop', '092amj', ' t2']"
                                     'discogstags'  "['experimental', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '5'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '145.2'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'5\x00+\x009\x006\x00+\x004\x00E\x00F\x001\x00+\x009\x00F\x00F\x00C\x00+\x00E\x002\x003\x00B\x00+\x001\x006\x006\x001\x00E\x00+\x001\x00A\x00C\x003\x008\x00\x00\x00')
'PRIV:AverageLevel:\x01\x0e\x00\x00'                PRIV(owner='AverageLevel', data=b'\x01\x0e\x00\x00')
'PRIV:PeakValue:4~\x00\x00'                         PRIV(owner='PeakValue', data=b'4~\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'What Leave Behind'
'TBPM' (BPM (beats per minute))                     '145.2'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Fellini'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '276626'
'TPE1' (Lead performer(s)/Soloist(s))               'Toychestra & Fred Frith'
'TPE2' (Band/orchestra/accompaniment)               'Toychestra'
'TRCK' (Track number/Position in set)               '2/5'
'TSO2'                                              'Toychestra'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['experimental', 'rock']
'TXXX:lastfmtags'                                   ['instrumental', 'jazz', 'toypop', '092amj', ' t2']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.00 dB'
'TXXX:replaygain_track_peak'                        '0.697197'

========================== row from database ==========================
                                              'id'  730446
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Toychestra/What Leave Behind/02 Fellini.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  276
                                           'genre'  electronic-unsorted;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  4965741
                                           'mtime'  1620347197
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 02 electronic unsorted;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Toychestra
                                     'tag_release'  What Leave Behind
                                       'tag_title'  Fellini
                                             'bpm'  145.2
                                    'search_title'  'fellini':1
                                   'search_artist'  'toychestra':1
                                  'search_release'  'behind':3 'leave':2 'what':1
                                     'search_rest'  'electronic':1 'mor':11 'pl':6 'set':3,5,8,10 'shirleyspinoza':7,9 'unsorted':2,4
                                    'search_combo'  'behind':5C 'electronic':6 'fellini':1A 'leave':4C 'mor':16 'pl':11 'set':8,10,13,15 'shirleyspinoza':12,14 'toychestra':2B 'unsorted':7,9 'what':3C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-syn-2', 'q-chart-1', 'q-other-4', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'jazz', 'toypop', '092amj', ' t2']
                                        'tag_date'  2004
                                     'discogstags'  ['experimental', 'rock']

============================== file details ==============================
                                           'mtime'  1620347197.0961647  (2021-05-07 02:26:37)
                             'size'  4965741