======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '234'
                                          'artist'  'Carpenters'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'My Favourite Things -Carpenter'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'Q-PIANO-3', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'q-chart-3', 'q-drums-2', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'female vocalists', 'pop', 'easy listening', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-squeaky'
                                             'bpm'  '131.755'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '131.755'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-squeaky'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'My Favourite Things -Carpenter'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Carpenters'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'female vocalists', 'pop', 'easy listening', '70s']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.86 dB'
'TXXX:replaygain_track_peak'                        '0.584773'

========================== row from database ==========================
                                              'id'  1310207
                                            'path'  /data/Music/Bulk/00poprockelectronic/Carpenters/diversen/Carpenters - My Favorite Things(instr.).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  234
                                           'genre'  electronic-generic or radio-squeaky
                                        'filesize'  3749580
                                           'mtime'  1622801113
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic diversen Favorite Things(instr.) electronic generic or radio squeaky
                                      'tag_artist'  Carpenters
                                     'tag_release'  None
                                       'tag_title'  My Favourite Things -Carpenter
                                             'bpm'  131.755
                                    'search_title'  'carpenter':4,5 'favourite':2 'my':1 'things':3
                                   'search_artist'  'carpenters':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'diversen':2 'electronic':7 'favorite':3 'generic':8 'instr':5 'or':9 'radio':10 'squeaky':11 'things':4 'thingsinstr':6
                                    'search_combo'  '00poprockelectronic':7 'carpenter':4A,5A 'carpenters':6B 'diversen':8 'electronic':13 'favorite':9 'favourite':2A 'generic':14 'instr':11 'my':1A 'or':15 'radio':16 'squeaky':17 'things':3A,10 'thingsinstr':12
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['oldies', 'female vocalists', 'pop', 'easy listening', '70s']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622801113.4550862  (2021-06-04 12:05:13)
                             'size'  3749580