======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '285'
                                          'artist'  'Carmen Cuesta Loeb'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Corcovado'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', "
 "'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['female vocalists', 'jazz', 'smooth jazz', 'spanish']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'prerock-jb'
                                             'bpm'  '109.824'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '109.824'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Corcovado'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Carmen Cuesta Loeb'
'TPE2' (Band/orchestra/accompaniment)               'Carmen Cuesta Loeb'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['female vocalists', 'jazz', 'smooth jazz', 'spanish']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.41 dB'
'TXXX:replaygain_track_peak'                        '0.361689'

========================== row from database ==========================
                                              'id'  1342814
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Carmen Cuesta Loeb - Corcovado [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  285
                                           'genre'  prerock-jb
                                        'filesize'  6848512
                                           'mtime'  1630249718
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] [] prerock jb
                                      'tag_artist'  Carmen Cuesta Loeb
                                     'tag_release'  None
                                       'tag_title'  Corcovado
                                             'bpm'  109.824
                                    'search_title'  'corcovado':1
                                   'search_artist'  'carmen':1 'cuesta':2 'loeb':3
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'jb':8 'loose':3,4 'prerock':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':5 'carmen':2B 'corcovado':1A 'cuesta':3B 'files':9,10 'jb':12 'loeb':4B 'loose':7,8 'prerock':11 'unsorted':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'jazz', 'smooth jazz', 'spanish']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630249718.0005178  (2021-08-29 17:08:38)
                             'size'  6848512