======================== unified (from filesystem) ========================
                                         'bitrate'  '172.816'
                                        'duration'  '300'
                                          'artist'  'The Dresden Dolls'
                                     'text_people'  ''
                                         'release'  '2005-10-13 Kansas City'
                                           'title'  'Mrs. O'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'Q-PLAY-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-4', 'q-other-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['punk cabaret', 'indie', 'cabaret', 'dark cabaret', 'dresden dolls']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter;ifs-songwriter-eos'
                                             'bpm'  '99.031'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '2005-10-13 Kansas City'
'TBPM' (BPM (beats per minute))                     '99.031'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter', 'ifs-songwriter-eos']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Mrs. O'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dresden Dolls'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['punk cabaret', 'indie', 'cabaret', 'dark cabaret', 'dresden dolls']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.44 dB'
'TXXX:replaygain_track_peak'                        '1.015567'

========================== row from database ==========================
                                              'id'  1376444
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Dresden Dolls & Amanda Palmer/Live, misc/The_Dresden_Dolls-Mrs._O_(2005-10-13_Kansas_City).mp3
                                         'working'  None
                                         'bitrate'  172
                                    'duration_sec'  300
                                           'genre'  ifs-songwriter;ifs-songwriter-eos
                                        'filesize'  6492586
                                           'mtime'  1636401357
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos & Amanda Palmer Live, misc The_Dresden_Dolls Mrs._O_(2005 13_Kansas_City) ifs songwriter;ifs songwriter eos
                                      'tag_artist'  The Dresden Dolls
                                     'tag_release'  2005-10-13 Kansas City
                                       'tag_title'  Mrs. O
                                             'bpm'  99.031
                                    'search_title'  'mrs':1,2 'o':3
                                   'search_artist'  'dolls':3 'dresden':2 'the':1
                                  'search_release'  '10':2 '13':3 '2005':1 '20051013':4 'city':6 'kansas':5
                                     'search_rest'  '00singer':1 '00songwriter':4 '13':19,22 '2005':15,18 'amanda':5 'city':21,24 'dolls':12 'dresden':11 'eos':3 'ifs':25,27,29 'kansas':20,23 'live':7,8 'misc':9 'mrs':13,16 'o':14,17 'palmer':6 'songwriter':2,26,28 'the':10
                                    'search_combo'  '00singer':13 '00songwriter':16 '10':8C '13':9C,31,34 '2005':7C,27,30 '20051013':10C 'amanda':17 'city':12C,33,36 'dolls':6B,24 'dresden':5B,23 'eos':15 'ifs':37,39,41 'kansas':11C,32,35 'live':19,20 'misc':21 'mrs':1A,2A,25,28 'o':3A,26,29 'palmer':18 'songwriter':14,38,40 'the':4B,22
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['punk cabaret', 'indie', 'cabaret', 'dark cabaret', 'dresden dolls']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636401357.1921146  (2021-11-08 20:55:57)
                             'size'  6492586