======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '348'
                                          'artist'  'Kraftwerk'
                                     'text_people'  'Kraftwerk'
                                         'release'  'electric cafe (german)'
                                           'title'  'musique non stop'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['german', 'electronica', 'electro', 'electronic', 'synthpop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '86.474'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'EMI'
'COMM:ID3v1 Comment:XXX'                            'EMI'
'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 \x001\x007\x001\x005\x001\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x007\x000\x006\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x00 \x006\x007\x005\x008\x000\x002\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x001\x007\x001\x005\x001\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x007\x000\x006\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x00 \x006\x007\x005\x008\x000\x002\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:?\tfßÔ\x81MH±\x16µ8`Ix('  PRIV(owner='WM/WMCollectionGroupID', data=b'?\tf\xdf\xd4\x81MH\xb1\x16\xb58`Ix(')
'PRIV:WM/WMCollectionID:?\tfßÔ\x81MH±\x16µ8`Ix('    PRIV(owner='WM/WMCollectionID', data=b'?\tf\xdf\xd4\x81MH\xb1\x16\xb58`Ix(')
'PRIV:WM/WMContentID:\x04\x01hÙ\x87\x95lF±M-\x0e³Ìì'  PRIV(owner='WM/WMContentID', data=b'\x04\x01h\xd9\x87\x95lF\xb1M-\x0e\xc2\xb3\xcc\xec')
'TALB' (Album/Movie/Show title)                     'electric cafe (german)'
'TBPM' (BPM (beats per minute))                     '86.474'
'TCOM' (Composer)                                   'Kraftwerk'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'musique non stop'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kraftwerk'
'TPE2' (Band/orchestra/accompaniment)               'Kraftwerk'
'TPUB' (Publisher)                                  'EMI'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['german', 'electronica', 'electro', 'electronic', 'synthpop']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.68 dB'
'TXXX:replaygain_track_peak'                        '0.867508'

========================== row from database ==========================
                                              'id'  1357127
                                            'path'  /data/Music/Bulk/00poprockelectronic/Kraftwerk/[1986] electric cafe/03-musique non stop.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  348
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  8360971
                                           'mtime'  1628353802
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [1986] 03 electronic electropop or synthpop
                                      'tag_artist'  Kraftwerk
                                     'tag_release'  electric cafe (german)
                                       'tag_title'  musique non stop
                                             'bpm'  86.474
                                    'search_title'  'musique':1 'non':2 'stop':3
                                   'search_artist'  'kraftwerk':1
                                  'search_release'  'cafe':2 'electric':1 'german':3,4
                                     'search_rest'  '00poprockelectronic':1 '1986':2,3 'electronic':4 'electropop':5 'or':6 'synthpop':7
                                    'search_combo'  '00poprockelectronic':9 '1986':10,11 'cafe':6C 'electric':5C 'electronic':12 'electropop':13 'german':7C,8C 'kraftwerk':4B 'musique':1A 'non':2A 'or':14 'stop':3A 'synthpop':15
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['german', 'electronica', 'electro', 'electronic', 'synthpop']
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628353802.281434  (2021-08-07 18:30:02)
                             'size'  8360971