======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '374'
                                          'artist'  'Timo Maas'
                                     'text_people'  'Azzido Da Bass'
                                         'release'  'Music for the Maases Disc 1'
                                           'title'  'Dooms Night [Timo Maas Mix]'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'house', 'electronica', 'electronic', 'trance']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '89.770'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'A\x00+\x009\x006\x00+\x006\x00E\x004\x00D\x00+\x00B\x006\x006\x00E\x00+\x001\x003\x00A\x005\x006\x00+\x001\x00B\x003\x009\x006\x00+\x002\x004\x008\x00D\x005\x00+\x002\x00A\x00E\x00B\x00A\x00+\x003\x000\x004\x00B\x007\x00+\x003\x007\x00E\x004\x009\x00+\x003\x00E\x00C\x00B\x000\x00+\x004\x004\x00E\x009\x00B\x00\x00\x00')
'PRIV:AverageLevel:m\x1c\x00\x00'                   PRIV(owner='AverageLevel', data=b'm\x1c\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\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 \x005\x000\x001\x005\x004\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x002\x007\x007\x008\x007\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x001\x001\x006\x003\x000\x007\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x000\x001\x005\x004\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x002\x007\x007\x008\x007\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x001\x001\x006\x003\x000\x007\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x8a¿\x91`VçÁE´ÆG=®Ëéy'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x8a\xbf\x91`V\xe7\xc1E\xb4\xc6G=\xae\xcb\xe9y')
'PRIV:WM/WMCollectionID:\x8a¿\x91`VçÁE´ÆG=®Ëéy'     PRIV(owner='WM/WMCollectionID', data=b'\x8a\xbf\x91`V\xe7\xc1E\xb4\xc6G=\xae\xcb\xe9y')
'PRIV:WM/WMContentID:Û\x88WÅ p]M¨?1ÊÛYío'           PRIV(owner='WM/WMContentID', data=b'\xdb\x88W\xc5 p]M\xa8?1\xca\xdbY\xedo')
'TALB' (Album/Movie/Show title)                     'Music for the Maases Disc 1'
'TBPM' (BPM (beats per minute))                     '89.770'
'TCOM' (Composer)                                   'Azzido Da Bass'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Dooms Night [Timo Maas Mix]'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '374493'
'TPE1' (Lead performer(s)/Soloist(s))               'Azzido Da Bass'
'TPE2' (Band/orchestra/accompaniment)               'Timo Maas'
'TPUB' (Publisher)                                  'Kinetic'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'house', 'electronica', 'electronic', 'trance']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.66 dB'
'TXXX:replaygain_track_peak'                        '0.493979'

========================== row from database ==========================
                                              'id'  1309739
                                            'path'  /data/Music/Bulk/00poprockelectronic/Timo Maas/Timo Maas - Music for the Maases/Azzido Da Bass-Dooms Night [Timo Maas Mix].mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  374
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  14971136
                                           'mtime'  1621696678
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Azzido Da Bass electronic generic radio dance
                                      'tag_artist'  Timo Maas
                                     'tag_release'  Music for the Maases Disc 1
                                       'tag_title'  Dooms Night [Timo Maas Mix]
                                             'bpm'  89.77
                                    'search_title'  'dooms':1 'maas':5 'mix':6,7 'night':2 'timo':3,4
                                   'search_artist'  'maas':2 'timo':1
                                  'search_release'  '1':6 'disc':5 'for':2 'maases':4 'music':1 'the':3
                                     'search_rest'  '00poprockelectronic':1 'azzido':2 'bass':4 'da':3 'dance':8 'electronic':5 'generic':6 'radio':7
                                    'search_combo'  '00poprockelectronic':16 '1':15C 'azzido':17 'bass':19 'da':18 'dance':23 'disc':14C 'dooms':1A 'electronic':20 'for':11C 'generic':21 'maas':5A,9B 'maases':13C 'mix':6A,7A 'music':10C 'night':2A 'radio':22 'the':12C 'timo':3A,4A,8B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'house', 'electronica', 'electronic', 'trance']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696678.3749561  (2021-05-22 17:17:58)
                             'size'  14971136