======================== unified (from filesystem) ========================
                                         'bitrate'  '187.887'
                                        'duration'  '504'
                                          'artist'  'Atmos'
                                     'text_people'  ''
                                         'release'  'Headcleaner'
                                           'title'  'Qualitdt Im Quadrat'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  ("['psychedelic', 'progressive psytrance', 'goa', 'progressive trance', "
 "'psytrance']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse;set-pl-sced'
                                             'bpm'  '133.933'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000023D 0000027E 0000135F'
'COMM:iTunNORM:eng'                                 (' 0000023D 0000027E 0000135F 00001D61 000482B4 000482B4 00007DC5 00007AB0 '
 '000482B4 0002691E')
'TALB' (Album/Movie/Show title)                     'Headcleaner'
'TBPM' (BPM (beats per minute))                     '133.933'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-th-techno-minimal or deephouse', 'set-pl-sced']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Qualitdt Im Quadrat'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Atmos'
'TPE2' (Band/orchestra/accompaniment)               'Atmos'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['psychedelic',
 'progressive psytrance',
 'goa',
 'progressive trance',
 'psytrance']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.33 dB'
'TXXX:replaygain_track_peak'                        '0.632813'

========================== row from database ==========================
                                              'id'  1385545
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/Atmos/[2000] Headcleaner/05 Qualität Im Quadrat.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  504
                                           'genre'  electronic-th-techno-minimal or deephouse;set-pl-sced
                                        'filesize'  11898467
                                           'mtime'  1621085127
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats [2000] 05 Qualität electronic th techno minimal or deephouse;set pl sced
                                      'tag_artist'  Atmos
                                     'tag_release'  Headcleaner
                                       'tag_title'  Qualitdt Im Quadrat
                                             'bpm'  133.933
                                    'search_title'  'im':2 'quadrat':3 'qualitdt':1
                                   'search_artist'  'atmos':1
                                  'search_release'  'headcleaner':1
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 '2000':6,7 'beats':5 'deephouse':15,17 'electronic':10 'harder':4 'house':3 'minimal':13 'or':14 'pl':19 'qualitat':8,9 'sced':20 'set':16,18 'techno':12 'th':11
                                    'search_combo'  '00poprockelectronic':6 '00techno':7 '2000':11,12 'atmos':4B 'beats':10 'deephouse':20,22 'electronic':15 'harder':9 'headcleaner':5C 'house':8 'im':2A 'minimal':18 'or':19 'pl':24 'quadrat':3A 'qualitat':13,14 'qualitdt':1A 'sced':25 'set':21,23 'techno':17 'th':16
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', '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-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic', 'progressive psytrance', 'goa', 'progressive trance', 'psytrance']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621085126.632029  (2021-05-15 15:25:26)
                             'size'  11898467