======================== unified (from filesystem) ========================
                                         'bitrate'  '202.511'
                                        'duration'  '293'
                                          'artist'  'Finntroll'
                                     'text_people'  'Hanna Wilska/Trollhorn'
                                         'release'  'Nattfödd'
                                           'title'  'Nattfödd'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk metal', 'black metal', 'viking metal', 'metal', 'finnish']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-metal-folk;eid-metal-melodic'
                                             'bpm'  '129'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\x10\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x10\x00\x00')
'PRIV:PeakValue:¡p\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1p\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 \x006\x008\x008\x004\x003\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x005\x000\x009\x008\x007\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x000\x000\x003\x004\x009\x001\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x006\x008\x008\x004\x003\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x005\x000\x009\x008\x007\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x000\x000\x003\x004\x009\x001\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ô[?Å$³°B¬LðÜáx\x9aZ'   PRIV(owner='WM/WMCollectionGroupID', data=b'\xf4[?\xc5$\xb3\xb0B\xacL\xf0\xdc\xe1x\x9aZ')
'PRIV:WM/WMCollectionID:ô[?Å$³°B¬LðÜáx\x9aZ'        PRIV(owner='WM/WMCollectionID', data=b'\xf4[?\xc5$\xb3\xb0B\xacL\xf0\xdc\xe1x\x9aZ')
'PRIV:WM/WMContentID:^Ê\x91ÙàäÿA\x99[àGôØl0'        PRIV(owner='WM/WMContentID', data=b'^\xca\x91\xd9\xe0\xe4\xffA\x99[\xe0G\xf4\xd8l0')
'TALB' (Album/Movie/Show title)                     'Nattfödd'
'TBPM' (BPM (beats per minute))                     '129'
'TCOM' (Composer)                                   'Hanna Wilska/Trollhorn'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-folk', 'eid-metal-melodic']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Nattfödd'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Finntroll'
'TPE2' (Band/orchestra/accompaniment)               'Finntroll'
'TPUB' (Publisher)                                  'Century Media'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['folk metal', 'black metal', 'viking metal', 'metal', 'finnish']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.94 dB'
'TXXX:replaygain_track_peak'                        '0.523700'

========================== row from database ==========================
                                              'id'  1353667
                                            'path'  /data/Music/Bulk/00poprockelectronic/Finntroll/Nattfödd/Finntroll-Nattfodd.mp3
                                         'working'  None
                                         'bitrate'  202
                                    'duration_sec'  293
                                           'genre'  eid-metal-folk;eid-metal-melodic
                                        'filesize'  7442222
                                           'mtime'  1620301753
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Nattfodd eid metal folk;eid metal melodic
                                      'tag_artist'  Finntroll
                                     'tag_release'  Nattfödd
                                       'tag_title'  Nattfödd
                                             'bpm'  129.0
                                    'search_title'  'nattfodd':1,2
                                   'search_artist'  'finntroll':1
                                  'search_release'  'nattfodd':1,2
                                     'search_rest'  '00poprockelectronic':1 'eid':3,6,8 'folk':5,7 'melodic':9 'metal':4 'nattfodd':2
                                    'search_combo'  '00poprockelectronic':6 'eid':8,11,13 'finntroll':3B 'folk':10,12 'melodic':14 'metal':9 'nattfodd':1A,2A,4C,5C,7
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['folk metal', 'black metal', 'viking metal', 'metal', 'finnish']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301753.05667  (2021-05-06 13:49:13)
                             'size'  7442222