======================== unified (from filesystem) ========================
                                         'bitrate'  '206.957'
                                        'duration'  '133'
                                          'artist'  'Frank Zappa'
                                     'text_people'  ''
                                         'release'  'Freak Out'
                                           'title'  'How Could I Be Such A Fool'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '143.416'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Freak Out'
'TBPM' (BPM (beats per minute))                     '143.416'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         'How Could I Be Such A Fool'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Zappa'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'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'                        '-0.08 dB'
'TXXX:replaygain_track_peak'                        '0.744555'

========================== row from database ==========================
                                              'id'  470874
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Frank Zappa/1966 - Freak Out!/06 - How Could I Be Such A Fool.mp3
                                         'working'  None
                                         'bitrate'  207
                                    'duration_sec'  133
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  3452554
                                           'mtime'  1636400791
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1966 Out! 06 ifs songwriter experimental
                                      'tag_artist'  Frank Zappa
                                     'tag_release'  Freak Out
                                       'tag_title'  How Could I Be Such A Fool
                                             'bpm'  143.416
                                    'search_title'  'a':6 'be':4 'could':2 'fool':7 'how':1 'i':3 'such':5
                                   'search_artist'  'frank':1 'zappa':2
                                  'search_release'  'freak':1 'out':2
                                     'search_rest'  '00singer':1 '1966':4 'eos':3 'experimental':7 'ifs':6 'out':5 'songwriter':2
                                    'search_combo'  '00singer':12 '1966':15 'a':6A 'be':4A 'could':2A 'eos':14 'experimental':18 'fool':7A 'frank':8B 'freak':10C 'how':1A 'i':3A 'ifs':17 'out':11C,16 'songwriter':13 'such':5A 'zappa':9B
                                    'tag_tracknum'  6
                                      '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-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400791.0688653  (2021-11-08 20:46:31)
                             'size'  3452554