======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '233'
                                          'artist'  'Tom Waits'
                                     'text_people'  'Leonard Bernstein/Stephen Sondheim'
                                         'release'  'Blue Valentine'
                                           'title'  'Somewhere {From West Side Story}'
                                           'quals'  ("['Q-JZFKS-2', 'Q-HAP-2', 'Q-LOCALNESS-2', 'Q-UNU-2', 'Q-OLDST-2', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']"
                                     'discogstags'  "['rock', 'blues rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1978'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '136.8'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'PRIV:AverageLevel:{\x0b\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x0b\x00\x00')
'PRIV:PeakValue:!`\x00\x00'                         PRIV(owner='PeakValue', data=b'!`\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')
'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 \x00 \x002\x001\x003\x007\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x007\x007\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x00 \x008\x005\x000\x009\x004\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x002\x001\x003\x007\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x007\x007\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x00 \x008\x005\x000\x009\x004\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:$\x15rW8ïJB¶\x14O\x83îH³ð'  PRIV(owner='WM/WMCollectionGroupID', data=b'$\x15rW8\xefJB\xb6\x14O\x83\xeeH\xb3\xf0')
'PRIV:WM/WMCollectionID:$\x15rW8ïJB¶\x14O\x83îH³ð'  PRIV(owner='WM/WMCollectionID', data=b'$\x15rW8\xefJB\xb6\x14O\x83\xeeH\xb3\xf0')
'PRIV:WM/WMContentID:\x11ø\x01\x0cX¾=F£O`Çdˬ4'     PRIV(owner='WM/WMContentID', data=b'\x11\xf8\x01\x0cX\xbe=F\xa3O`\xc7d\xcb\xac4')
'TALB' (Album/Movie/Show title)                     'Blue Valentine'
'TBPM' (BPM (beats per minute))                     '136.8'
'TCOM' (Composer)                                   'Leonard Bernstein/Stephen Sondheim'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '1978'
'TIT2' (Title/songname/content description)         'Somewhere {From West Side Story}'
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '233266'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Waits'
'TPE2' (Band/orchestra/accompaniment)               'Tom Waits'
'TPUB' (Publisher)                                  'Asylum'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'blues rock']
'TXXX:lastfmtags'                                   ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.08 dB'
'TXXX:replaygain_track_peak'                        '0.632063'

========================== row from database ==========================
                                              'id'  1324487
                                            'path'  /data/Music/Bulk/00poprockelectronic/TomWaits/Blue Valentine/01-Somewhere (From _West Side Story_).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  233
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  9426200
                                           'mtime'  1639508230
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic TomWaits 01 (From _West Story_) ifs songwriter experimental
                                      'tag_artist'  Tom Waits
                                     'tag_release'  Blue Valentine
                                       'tag_title'  Somewhere {From West Side Story}
                                             'bpm'  136.8
                                    'search_title'  'from':2 'side':4 'somewhere':1 'story':5 'west':3
                                   'search_artist'  'tom':1 'waits':2
                                  'search_release'  'blue':1 'valentine':2
                                     'search_rest'  '00poprockelectronic':1 'experimental':10 'from':3,4 'ifs':8 'songwriter':9 'story':6,7 'tom':11 'tomwaits':2 'waits':12 'west':5
                                    'search_combo'  '00poprockelectronic':10 'blue':8C 'experimental':19 'from':2A,12,13 'ifs':17 'side':4A 'somewhere':1A 'songwriter':18 'story':5A,15,16 'tom':6B,20 'tomwaits':11 'valentine':9C 'waits':7B,21 'west':3A,14
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
                                        'tag_date'  1978
                                     'discogstags'  ['rock', 'blues rock']

============================== file details ==============================
                                           'mtime'  1639508229.5404766  (2021-12-14 19:57:09)
                             'size'  9426200