======================== unified (from filesystem) ========================
                                         'bitrate'  '175.488'
                                        'duration'  '275'
                                          'artist'  'Angus & Julia Stone'
                                     'text_people'  ''
                                         'release'  'A Book Like This'
                                           'title'  'Horse And Cart'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'australian', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk, world, & country', 'folk rock', 'acoustic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos;ifs-songwriter-folk'
                                             'bpm'  '113.964'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'A Book Like This'
'TBPM' (BPM (beats per minute))                     '113.964'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-eos', 'ifs-songwriter-folk']
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Horse And Cart'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Angus & Julia Stone'
'TRCK' (Track number/Position in set)               '13'
'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:discogstags'                                  ['rock', 'folk, world, & country', 'folk rock', 'acoustic']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'australian', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.573544'

========================== row from database ==========================
                                              'id'  190713
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Angus & Julia Stone/13-angus_and_julia_stone-horse_and_cart.mp3
                                         'working'  None
                                         'bitrate'  175
                                    'duration_sec'  275
                                           'genre'  ifs-songwriter-eos;ifs-songwriter-folk
                                        'filesize'  6059643
                                           'mtime'  1637330480
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 13 angus_and_julia_stone horse_and_cart ifs songwriter eos;ifs songwriter folk
                                      'tag_artist'  Angus & Julia Stone
                                     'tag_release'  A Book Like This
                                       'tag_title'  Horse And Cart
                                             'bpm'  113.964
                                    'search_title'  'and':2 'cart':3 'horse':1
                                   'search_artist'  'angus':1 'julia':2 'stone':3
                                  'search_release'  'a':1 'book':2 'like':3 'this':4
                                     'search_rest'  '00singer':1 'and':5,9 'angus':4 'cart':10 'eos':3,12,14 'folk':16 'horse':8 'ifs':11,13,15 'julia':6 'songwriter':2 'stone':7
                                    'search_combo'  '00singer':11 'a':7C 'and':2A,15,19 'angus':4B,14 'book':8C 'cart':3A,20 'eos':13,22,24 'folk':26 'horse':1A,18 'ifs':21,23,25 'julia':5B,16 'like':9C 'songwriter':12 'stone':6B,17 'this':10C
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'australian', 'folk', 'singer songwriter']
                                        'tag_date'  2007
                                     'discogstags'  ['rock', 'folk, world, & country', 'folk rock', 'acoustic']

============================== file details ==============================
                                           'mtime'  1637330480.1838884  (2021-11-19 15:01:20)
                             'size'  6059643