======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '309'
                                          'artist'  'Kate Bush'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Cloudbusting'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative', 'rock', 'female vocalists', 'pop', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '113.073'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '113.073'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TIT2' (Title/songname/content description)         'Cloudbusting'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kate Bush'
'TXXX:Mp3gain_minmax'                               '134,193'
'TXXX:Mp3gain_undo'                                 '-003,-003,N'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['alternative', 'rock', 'female vocalists', 'pop', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.20 dB'
'TXXX:replaygain_track_peak'                        '0.658593'

========================== row from database ==========================
                                              'id'  1348788
                                            'path'  /data/Music/Bulk/00poprockelectronic/Kate Bush/Kate Bush_/Kate Bush - Cloudbusting.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  309
                                           'genre'  ifs-songwriter
                                        'filesize'  6185287
                                           'mtime'  1637330744
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Bush_ ifs songwriter
                                      'tag_artist'  Kate Bush
                                     'tag_release'  None
                                       'tag_title'  Cloudbusting
                                             'bpm'  113.073
                                    'search_title'  'cloudbusting':1
                                   'search_artist'  'bush':2 'kate':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'bush':2 'ifs':3 'songwriter':4
                                    'search_combo'  '00poprockelectronic':4 'bush':3B,5 'cloudbusting':1A 'ifs':6 'kate':2B 'songwriter':7
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'rock', 'female vocalists', 'pop', 'singer songwriter']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330743.9268987  (2021-11-19 15:05:43)
                             'size'  6185287