======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '225'
                                          'artist'  'Hydroxie'
                                     'text_people'  ''
                                         'release'  'Seelenfresser'
                                           'title'  'Sterbehilfe'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'Q-SYN-3', 'Q-PLAY-3', 'q-bass-3', 'Q-CHART-1', 'q-drums-4', "
 "'q-other-1', 'q-piano-1', 'q-vocals-1', 'Q-MIXBEAT-3', 'Q-BUSY-3', "
 "'Q-GRIT-3']")
                                      'lastfmtags'  "['dark electro', 'industrial', 'electronic', 'ebm', 'electro']"
                                     'discogstags'  "['industrial', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '145.0'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Seelenfresser'
'TBPM' (BPM (beats per minute))                     '145.0'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2014'
'TIT2' (Title/songname/content description)         'Sterbehilfe'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hydroxie'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['industrial', 'electronic']
'TXXX:lastfmtags'                                   ['dark electro', 'industrial', 'electronic', 'ebm', 'electro']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.97 dB'
'TXXX:replaygain_track_peak'                        '0.468744'

========================== row from database ==========================
                                              'id'  1489325
                                            'path'  /data/Music/Bulk/00dwimp/Hydroxie/Sterbehilfe.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  225
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  7267925
                                           'mtime'  1620296648
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp eid ebm or industrial or darkwave
                                      'tag_artist'  Hydroxie
                                     'tag_release'  Seelenfresser
                                       'tag_title'  Sterbehilfe
                                             'bpm'  145.0
                                    'search_title'  'sterbehilfe':1
                                   'search_artist'  'hydroxie':1
                                  'search_release'  'seelenfresser':1
                                     'search_rest'  '00dwimp':1 'darkwave':6 'ebm':3 'eid':2 'industrial':5 'or':4
                                    'search_combo'  '00dwimp':4 'darkwave':9 'ebm':6 'eid':5 'hydroxie':2B 'industrial':8 'or':7 'seelenfresser':3C 'sterbehilfe':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-GRIT-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-4', 'q-piano-1', 'Q-SYN-3', 'q-other-1', 'Q-BUSY-3', 'Q-HAP-1', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  ['dark electro', 'industrial', 'electronic', 'ebm', 'electro']
                                        'tag_date'  2014
                                     'discogstags'  ['industrial', 'electronic']

============================== file details ==============================
                                           'mtime'  1620296648.1289945  (2021-05-06 12:24:08)
                             'size'  7267925