======================== unified (from filesystem) ========================
                                         'bitrate'  '208.191'
                                        'duration'  '387'
                                          'artist'  'Oliver Koletzki'
                                     'text_people'  ''
                                         'release'  'Electropunk: Viva la Revolution'
                                           'title'  'Der Mückenschwarm'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-3']")
                                      'lastfmtags'  "['minimal', 'electronic', 'techno', 'minimal techno', 'electro']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '127.605'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Electropunk: Viva la Revolution'
'TBPM' (BPM (beats per minute))                     '127.605'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'Der Mückenschwarm'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Oliver Koletzki'
'TRCK' (Track number/Position in set)               '1'
'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'                                   ['minimal', 'electronic', 'techno', 'minimal techno', 'electro']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+4.02 dB'
'TXXX:replaygain_track_peak'                        '0.350804'

========================== row from database ==========================
                                              'id'  1306819
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/[jett 11] Oliver Koletzki - Der Mückenschwarm.mp3
                                         'working'  None
                                         'bitrate'  208
                                    'duration_sec'  387
                                           'genre'  electronic-unsorted
                                        'filesize'  10076558
                                           'mtime'  1620573072
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] [jett 11] electronic unsorted
                                      'tag_artist'  Oliver Koletzki
                                     'tag_release'  Electropunk: Viva la Revolution
                                       'tag_title'  Der Mückenschwarm
                                             'bpm'  127.605
                                    'search_title'  'der':1 'muckenschwarm':2,3
                                   'search_artist'  'koletzki':2 'oliver':1
                                  'search_release'  'electropunk':1,2 'la':4 'revolution':5 'viva':3
                                     'search_rest'  '00poprockelectronic':1 '11':9,10 'electronic':11 'files':5,6 'jett':7,8 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':11 '11':19,20 'der':1A 'electronic':21 'electropunk':6C,7C 'files':15,16 'jett':17,18 'koletzki':5B 'la':9C 'loose':13,14 'muckenschwarm':2A,3A 'oliver':4B 'revolution':10C 'unsorted':12 'viva':8C
                                    '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-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['minimal', 'electronic', 'techno', 'minimal techno', 'electro']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620573071.9247692  (2021-05-09 17:11:11)
                             'size'  10076558