======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '195'
                                          'artist'  'Carlo Cordara'
                                     'text_people'  ''
                                         'release'  'Best of'
                                           'title'  'Misly (LP v.)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                     'discogstags'  "['funk / soul', 'latin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '99.8'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:K\x0f\x00\x00'                   PRIV(owner='AverageLevel', data=b'K\x0f\x00\x00')
'PRIV:PeakValue:º|\x00\x00'                         PRIV(owner='PeakValue', data=b'\xba|\x00\x00')
'TALB' (Album/Movie/Show title)                     'Best of'
'TBPM' (BPM (beats per minute))                     '99.8'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Misly (LP v.)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Carlo Cordara'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'latin']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.03 dB'
'TXXX:replaygain_track_peak'                        '0.974452'

========================== row from database ==========================
                                              'id'  1524216
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Carlo Cordara - Misly (LP v.).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  195
                                           'genre'  funk or soul
                                        'filesize'  6271811
                                           'mtime'  1628357803
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s funk soul
                                      'tag_artist'  Carlo Cordara
                                     'tag_release'  Best of
                                       'tag_title'  Misly (LP v.)
                                             'bpm'  99.8
                                    'search_title'  'lp':2,3 'misly':1 'v':4,5
                                   'search_artist'  'carlo':1 'cordara':2
                                  'search_release'  'best':1 'of':2
                                     'search_rest'  '70':6 'easy':4 'funk':2 'instr':5 's':7 'soul':3 'swing':1
                                    'search_combo'  '70':15 'best':8C 'carlo':6B 'cordara':7B 'easy':13 'funk':11 'instr':14 'lp':2A,3A 'misly':1A 'of':9C 's':16 'soul':12 'swing':10 'v':4A,5A
                                    'tag_tracknum'  13
                                      '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-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1999
                                     'discogstags'  ['funk / soul', 'latin']

============================== file details ==============================
                                           'mtime'  1628357803.1365976  (2021-08-07 19:36:43)
                             'size'  6271811