======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '332'
                                          'artist'  'Ani DiFranco'
                                     'text_people'  ''
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 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'folk rock', 'female vocalists', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '134.377'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Living In Clip (Disc 2)'
'TBPM' (BPM (beats per minute))                     '134.377'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TIT2' (Title/songname/content description)         'Adam And Eve'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ani DiFranco'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'folk rock', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.03 dB'
'TXXX:replaygain_track_peak'                        '0.725777'

========================== row from database ==========================
                                              'id'  1380401
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Ani DiFranco/Living In Clip (Disc 2)/MBZ;#Ani DiFranco;#Living In Clip (disc 2);#04;#Adam and Eve.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  332
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  5322203
                                           'mtime'  1623430167
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos MBZ;#Ani DiFranco;#Living (disc 2);#04;#Adam and ifs songwriter eos
                                      'tag_artist'  Ani DiFranco
                                     'tag_release'  Living In Clip (Disc 2)
                                       'tag_title'  Adam And Eve
                                             'bpm'  134.377
                                    'search_title'  'adam':1 'and':2 'eve':3
                                   'search_artist'  'ani':1 'di':3 'difranco':2 'franco':4
                                  'search_release'  '2':6,7 'clip':3 'disc':4,5 'in':2 'living':1
                                     'search_rest'  '00singer':1 '00songwriter':4 '04':16,19 '2':15,18 'adam':17,20 'and':21 'ani':6,8 'di':23 'difranco':9,11 'disc':13,14 'eos':3 'franco':24,26 'ifs':22 'living':10,12,25,27 'mbz':5,7 'songwriter':2
                                    'search_combo'  '00singer':15 '00songwriter':18 '04':30,33 '2':13C,14C,29,32 'adam':1A,31,34 'and':2A,35 'ani':4B,20,22 'clip':10C 'di':6B,37 'difranco':5B,23,25 'disc':11C,12C,27,28 'eos':17 'eve':3A 'franco':7B,38,40 'ifs':36 'in':9C 'living':8C,24,26,39,41 'mbz':19,21 'songwriter':16
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'folk rock', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1623430166.6585927  (2021-06-11 18:49:26)
                             'size'  5322203