======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '205'
                                          'artist'  'Franco Bixio'
                                     'text_people'  ''
                                         'release'  'Speedball Experience'
                                           'title'  "Diamonds (IT '72)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soundtrack', 'film music', 'all', 'jazz rock', '1970s']"
                                     'discogstags'  "['soundtrack', 'stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '120.0'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000541 00000818 00002311 00002977 0002BF37 0001ADDE 0000765F 00008000 '
 '000111B5 0000C395')
'PRIV:AverageLevel:9\x11\x00\x00'                   PRIV(owner='AverageLevel', data=b'9\x11\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Speedball Experience'
'TBPM' (BPM (beats per minute))                     '120.0'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TENC' (Encoded by)                                 'Tag&Rename 3.0.6'
'TIT2' (Title/songname/content description)         "Diamonds (IT '72)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Franco Bixio'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['soundtrack', 'stage & screen']
'TXXX:lastfmtags'                                   ['soundtrack', 'film music', 'all', 'jazz rock', '1970s']
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-4.61 dB'
'TXXX:replaygain_track_peak'                        '1.213815'

========================== row from database ==========================
                                              'id'  1528347
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Franco Bixio - Diamonds (IT _72).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  205
                                           'genre'  funk or soul
                                        'filesize'  4934514
                                           'mtime'  1628357827
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s _72) funk or soul
                                      'tag_artist'  Franco Bixio
                                     'tag_release'  Speedball Experience
                                       'tag_title'  Diamonds (IT '72)
                                             'bpm'  120.0
                                    'search_title'  '72':4,5 'diamonds':1 'it':2,3
                                   'search_artist'  'bixio':2 'franco':1
                                  'search_release'  'experience':2 'speedball':1
                                     'search_rest'  '70':6 '72':8,9 'easy':4 'funk':2 'instr':5 'or':10 's':7 'soul':3 'swing':1
                                    'search_combo'  '70':15 '72':4A,5A,17,18 'bixio':7B 'diamonds':1A 'easy':13 'experience':9C 'franco':6B 'funk':11 'instr':14 'it':2A,3A 'or':19 's':16 'soul':12 'speedball':8C 'swing':10
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'film music', 'all', 'jazz rock', '1970s']
                                        'tag_date'  1975
                                     'discogstags'  ['soundtrack', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1628357826.8261495  (2021-08-07 19:37:06)
                             'size'  4934514