======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '62'
                                          'artist'  'Carpenters'
                                     'text_people'  ''
                                         'release'  'Coca Cola Commercials'
                                           'title'  '1971 Coca-Cola Commercial'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'female vocalists', 'pop', 'easy listening', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '00'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-squeaky'
                                             'bpm'  '109.824'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PCNT' (Play counter)                               PCNT(count=0)
'TALB' (Album/Movie/Show title)                     'Coca Cola Commercials'
'TBPM' (BPM (beats per minute))                     '109.824'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-squeaky'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         '1971 Coca-Cola Commercial'
'TKEY' (Initial key)                                '8B'
'TLEN' (Length)                                     '62000'
'TPE1' (Lead performer(s)/Soloist(s))               'Carpenters'
'TRCK' (Track number/Position in set)               '00'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'female vocalists', 'pop', 'easy listening', '70s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.55 dB'
'TXXX:replaygain_track_peak'                        '0.618280'

========================== row from database ==========================
                                              'id'  1326782
                                            'path'  /data/Music/Bulk/00poprockelectronic/Carpenters/diversen/Carpenters - Coca-Cola Commercial 1971.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  62
                                           'genre'  electronic-generic or radio-squeaky
                                        'filesize'  1051794
                                           'mtime'  1620568266
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic diversen electronic generic or radio squeaky
                                      'tag_artist'  Carpenters
                                     'tag_release'  Coca Cola Commercials
                                       'tag_title'  1971 Coca-Cola Commercial
                                             'bpm'  109.824
                                    'search_title'  '1971':1 'coca':2 'cocacola':4 'cola':3 'commercial':5
                                   'search_artist'  'carpenters':1
                                  'search_release'  'coca':1 'cola':2 'commercials':3
                                     'search_rest'  '00poprockelectronic':1 'diversen':2 'electronic':3 'generic':4 'or':5 'radio':6 'squeaky':7
                                    'search_combo'  '00poprockelectronic':10 '1971':1A 'carpenters':6B 'coca':2A,7C 'cocacola':4A 'cola':3A,8C 'commercial':5A 'commercials':9C 'diversen':11 'electronic':12 'generic':13 'or':14 'radio':15 'squeaky':16
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['oldies', 'female vocalists', 'pop', 'easy listening', '70s']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620568266.2936  (2021-05-09 15:51:06)
                             'size'  1051794