======================== unified (from filesystem) ========================
                                         'bitrate'  '205.066'
                                        'duration'  '453'
                                          'artist'  'Moonbootica'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Listen (Chab Remix)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-3', '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-2']")
                                      'lastfmtags'  "['dance', 'house', 'electro', 'electronic', 'minimal']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '123.9'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '123.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'LAME Encoder 3.90.3 APS'
'TIT2' (Title/songname/content description)         'Listen (Chab Remix)'
'TKEY' (Initial key)                                '10A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Moonbootica'
'TRCK' (Track number/Position in set)               '2'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'house', 'electro', 'electronic', 'minimal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.75 dB'
'TXXX:replaygain_track_peak'                        '0.620174'

========================== row from database ==========================
                                              'id'  759592
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Elektronikzeugs/Moonbootica - listen (chab remix).mp3
                                         'working'  None
                                         'bitrate'  205
                                    'duration_sec'  453
                                           'genre'  electronic-unsorted
                                        'filesize'  11637738
                                           'mtime'  1621695780
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Elektronikzeugs listen (chab remix) electronic unsorted
                                      'tag_artist'  Moonbootica
                                     'tag_release'  None
                                       'tag_title'  Listen (Chab Remix)
                                             'bpm'  123.9
                                    'search_title'  'chab':2,3 'listen':1 'remix':4,5
                                   'search_artist'  'moonbootica':1
                                  'search_release'  
                                     'search_rest'  'chab':3,4 'electronic':7 'elektronikzeugs':1 'listen':2 'remix':5,6 'unsorted':8
                                    'search_combo'  'chab':2A,3A,9,10 'electronic':13 'elektronikzeugs':7 'listen':1A,8 'moonbootica':6B 'remix':4A,5A,11,12 'unsorted':14
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'house', 'electro', 'electronic', 'minimal']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621695779.7211092  (2021-05-22 17:02:59)
                             'size'  11637738