======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '243'
                                          'artist'  'Klaus Hallen'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Endless Love (deut) Rumba)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['samba', 'ballroom', 'dance', 'waltz', 'tanzmusik', 'foxtrot']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '99.861'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '99.861'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Endless Love (deut) Rumba)'
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'CD (CD)'
'TPE1' (Lead performer(s)/Soloist(s))               'Klaus Hallen'
'TPE2' (Band/orchestra/accompaniment)               'Klaus Hallen'
'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:lastfmtags'                                   ['samba', 'ballroom', 'dance', 'waltz', 'tanzmusik', 'foxtrot']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.75 dB'
'TXXX:replaygain_track_peak'                        '0.460445'

========================== row from database ==========================
                                              'id'  1346568
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Klaus Hallen - Endless Love (Deut) Rumba) [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  243
                                           'genre'  electronic-unsorted
                                        'filesize'  5853184
                                           'mtime'  1621696770
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] (Deut) [] electronic unsorted
                                      'tag_artist'  Klaus Hallen
                                     'tag_release'  None
                                       'tag_title'  Endless Love (deut) Rumba)
                                             'bpm'  99.861
                                    'search_title'  'deut':3,4 'endless':1 'love':2 'rumba':5,6
                                   'search_artist'  'hallen':2 'klaus':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'deut':7,8 'electronic':9 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 'deut':3A,4A,15,16 'electronic':17 'endless':1A 'files':13,14 'hallen':8B 'klaus':7B 'loose':11,12 'love':2A 'rumba':5A,6A 'unsorted':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['samba', 'ballroom', 'dance', 'waltz', 'tanzmusik', 'foxtrot']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696769.6218686  (2021-05-22 17:19:29)
                             'size'  5853184