======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '302'
                                          'artist'  'Ani DiFranco and Indigo Girls'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Not a Pretty Girl'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', "
 "'q-busy-3', 'q-grit-2', 'q-play-3', 'Q-JZFKS-1', 'q-chart-4', 'q-drums-2', "
 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '102.644'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '102.644'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TIT2' (Title/songname/content description)         'Not a Pretty Girl'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Ani DiFranco and Indigo Girls'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'folk'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.44 dB'
'TXXX:replaygain_track_peak'                        '0.973877'

========================== row from database ==========================
                                              'id'  1377727
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Ani DiFranco/cifs77fc.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  302
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  4843392
                                           'mtime'  1636401234
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos cifs77fc ifs songwriter eos
                                      'tag_artist'  Ani DiFranco and Indigo Girls
                                     'tag_release'  None
                                       'tag_title'  Not a Pretty Girl
                                             'bpm'  102.644
                                    'search_title'  'a':2 'girl':4 'not':1 'pretty':3
                                   'search_artist'  'and':3 'ani':1 'di':6 'difranco':2 'franco':7 'girls':5 'indigo':4
                                  'search_release'  
                                     'search_rest'  '00singer':1 '00songwriter':4 'cifs77fc':5 'eos':3 'ifs':6 'songwriter':2
                                    'search_combo'  '00singer':12 '00songwriter':15 'a':2A 'and':7B 'ani':5B 'cifs77fc':16 'di':10B 'difranco':6B 'eos':14 'franco':11B 'girl':4A 'girls':9B 'ifs':17 'indigo':8B 'not':1A 'pretty':3A 'songwriter':13
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['folk']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636401234.402495  (2021-11-08 20:53:54)
                             'size'  4843392