======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '263'
                                          'artist'  'Emma Shapplin'
                                     'text_people'  ''
                                         'release'  'Etterna'
                                           'title'  'Da Me Non Venni'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['opera', 'new age', 'female vocalists', 'classical', 'neoclassical']"
                                     'discogstags'  "['electronic', 'modern classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments-contemporary'
                                             'bpm'  '133.756'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Etterna'
'TBPM' (BPM (beats per minute))                     '133.756'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments-contemporary'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Da Me Non Venni'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Emma Shapplin'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'modern classical']
'TXXX:lastfmtags'                                   ['opera', 'new age', 'female vocalists', 'classical', 'neoclassical']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.08 dB'
'TXXX:replaygain_track_peak'                        '0.507709'

========================== row from database ==========================
                                              'id'  1299480
                                            'path'  /data/Music/Bulk/00poprockelectronic/Etterna/MBZ;#Emma Shapplin;#Etterna;#03;#Da me non venni.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  263
                                           'genre'  prerock-classical or classical instruments-contemporary
                                        'filesize'  6332288
                                           'mtime'  1636916824
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Emma Shapplin;#Etterna;#03;#Da me non venni prerock classical or classical instruments contemporary
                                      'tag_artist'  Emma Shapplin
                                     'tag_release'  Etterna
                                       'tag_title'  Da Me Non Venni
                                             'bpm'  133.756
                                    'search_title'  'da':1 'me':2 'non':3 'venni':4
                                   'search_artist'  'emma':1 'shapplin':2
                                  'search_release'  'etterna':1
                                     'search_rest'  '00poprockelectronic':1 '03':8,12 'classical':18 'contemporary':21 'da':9,13 'emma':3,5 'etterna':7,11 'instruments':20 'mbz':2,4 'me':14 'non':15 'or':19 'prerock':17 'shapplin':6,10 'venni':16
                                    'search_combo'  '00poprockelectronic':8 '03':15,19 'classical':25 'contemporary':28 'da':1A,16,20 'emma':5B,10,12 'etterna':7C,14,18 'instruments':27 'mbz':9,11 'me':2A,21 'non':3A,22 'or':26 'prerock':24 'shapplin':6B,13,17 'venni':4A,23
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['opera', 'new age', 'female vocalists', 'classical', 'neoclassical']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'modern classical']

============================== file details ==============================
                                           'mtime'  1636916823.7242954  (2021-11-14 20:07:03)
                             'size'  6332288