======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '105'
                                          'artist'  'Wendy Carlos'
                                     'text_people'  'Johann Sebastian Bach'
                                         'release'  'Switched-On Bach II'
                                           'title'  'Suite from Anna Magdalena Notebook: Minuet in G Major'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'electronic', 'experimental', 'classical', 'moog']"
                                     'discogstags'  "['electronic', 'classical', 'modern classical', 'baroque']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early;mi-earlysynth'
                                             'bpm'  '124.5'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'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')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x009\x002\x002\x002\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x002\x009\x007\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x005\x002\x003\x002\x005\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x009\x002\x002\x002\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x002\x009\x007\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x005\x002\x003\x002\x005\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x92\x91<`ËM¼Mµ)V¦\x0coö\x11'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x92\x91<`\xcbM\xbcM\xb5)V\xa6\x0co\xf6\x11')
'PRIV:WM/WMCollectionID:\x92\x91<`ËM¼Mµ)V¦\x0coö\x11'  PRIV(owner='WM/WMCollectionID', data=b'\x92\x91<`\xcbM\xbcM\xb5)V\xa6\x0co\xf6\x11')
'PRIV:WM/WMContentID:y~<ò,©JA\x91ì\x1còÜ»\x83!'     PRIV(owner='WM/WMContentID', data=b'y~<\xf2,\xa9JA\x91\xec\x1c\xf2\xdc\xbb\x83!')
'TALB' (Album/Movie/Show title)                     'Switched-On Bach II'
'TBPM' (BPM (beats per minute))                     '124.5'
'TCOM' (Composer)                                   'Johann Sebastian Bach'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-early', 'mi-earlysynth']
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Suite from Anna Magdalena Notebook: Minuet in G Major'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wendy Carlos'
'TPE2' (Band/orchestra/accompaniment)               'Wendy Carlos'
'TPUB' (Publisher)                                  'East Side Digital'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'classical', 'modern classical', 'baroque']
'TXXX:lastfmtags'                                   ['soundtrack', 'electronic', 'experimental', 'classical', 'moog']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'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'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.97 dB'
'TXXX:replaygain_track_peak'                        '0.596563'

========================== row from database ==========================
                                              'id'  973412
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Wendy Carlos/Wendy Carlos - Switched-On Bach II/08 Suite from Anna Magdalena Notebook - 2. Menuet in G major.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  105
                                           'genre'  electronic-experimental-early;mi-earlysynth
                                        'filesize'  4223906
                                           'mtime'  1636911691
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 08 2. Menuet major electronic experimental early;mi earlysynth
                                      'tag_artist'  Wendy Carlos
                                     'tag_release'  Switched-On Bach II
                                       'tag_title'  Suite from Anna Magdalena Notebook: Minuet in G Major
                                             'bpm'  124.5
                                    'search_title'  'anna':3 'from':2 'g':9 'in':8 'magdalena':4 'major':10 'minuet':7 'notebook':5,6 'suite':1
                                   'search_artist'  'carlos':2 'wendy':1
                                  'search_release'  'bach':4 'ii':5 'on':2 'switched':1 'switchedon':3
                                     'search_rest'  '2':1,2 'early':7,9 'earlysynth':11 'electronic':5 'experimental':6 'major':4 'menuet':3 'mi':8,10
                                    'search_combo'  '2':18,19 'anna':3A 'bach':16C 'carlos':12B 'early':24,26 'earlysynth':28 'electronic':22 'experimental':23 'from':2A 'g':9A 'ii':17C 'in':8A 'magdalena':4A 'major':10A,21 'menuet':20 'mi':25,27 'minuet':7A 'notebook':5A,6A 'on':14C 'suite':1A 'switched':13C 'switchedon':15C 'wendy':11B
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  9B
                                           '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-2', 'q-drums-1', 'q-syn-3', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'electronic', 'experimental', 'classical', 'moog']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic', 'classical', 'modern classical', 'baroque']

============================== file details ==============================
                                           'mtime'  1636911691.348094  (2021-11-14 18:41:31)
                             'size'  4223906