======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '284'
                                          'artist'  'Panama'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "It's not over"
                                           'quals'  ("['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-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'synthpop', 'indie', 'nu disco', 'australian']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '130.1'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '130.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2010'
'TDTG' (Tagging time)                               '2012-10-04 16:26:16'
'TIT2' (Title/songname/content description)         "It's not over"
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Panama'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf52.64.2'
'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'                                   ['electronic', 'synthpop', 'indie', 'nu disco', 'australian']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.94 dB'
'TXXX:replaygain_track_peak'                        '0.622055'

========================== row from database ==========================
                                              'id'  1513719
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Elektronikzeugs/Panama - It_s not over.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  284
                                           'genre'  electronic-unsorted
                                        'filesize'  6870050
                                           'mtime'  1620536675
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Elektronikzeugs It_s electronic unsorted
                                      'tag_artist'  Panama
                                     'tag_release'  None
                                       'tag_title'  It's not over
                                             'bpm'  130.1
                                    'search_title'  'it':1 'its':3 'not':4 'over':5 's':2
                                   'search_artist'  'panama':1
                                  'search_release'  
                                     'search_rest'  'electronic':4 'elektronikzeugs':1 'it':2 's':3 'unsorted':5
                                    'search_combo'  'electronic':10 'elektronikzeugs':7 'it':1A,8 'its':3A 'not':4A 'over':5A 'panama':6B 's':2A,9 'unsorted':11
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'synthpop', 'indie', 'nu disco', 'australian']
                                        'tag_date'  2010
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620536674.6175463  (2021-05-09 07:04:34)
                             'size'  6870050