======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '193'
                                          'artist'  'Joni Mitchell'
                                     'text_people'  ''
                                         'release'  'Clouds'
                                           'title'  "I Don't Know Where I Stand"
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk;ifs-songwriter-eos'
                                             'bpm'  '121.994'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:{\x07\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x07\x00\x00')
'PRIV:PeakValue:!U\x00\x00'                         PRIV(owner='PeakValue', data=b'!U\x00\x00')
'TALB' (Album/Movie/Show title)                     'Clouds'
'TBPM' (BPM (beats per minute))                     '121.994'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-folk', 'ifs-songwriter-eos']
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         "I Don't Know Where I Stand"
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '0'
'TPE1' (Lead performer(s)/Soloist(s))               'Joni Mitchell'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock']
'TXXX:lastfmtags'                                   ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.788986'

========================== row from database ==========================
                                              'id'  1509153
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Joni Mitchell/1969 - Clouds/03 - I Don_t Know Where I Stand.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  193
                                           'genre'  ifs-songwriter-folk;ifs-songwriter-eos
                                        'filesize'  4665216
                                           'mtime'  1636400331
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1969 03 Don_t ifs songwriter folk;ifs songwriter eos
                                      'tag_artist'  Joni Mitchell
                                     'tag_release'  Clouds
                                       'tag_title'  I Don't Know Where I Stand
                                             'bpm'  121.994
                                    'search_title'  'don':2 'dont':4 'i':1 'know':5 'stand':7 't':3 'where':6
                                   'search_artist'  'joni':1 'mitchell':2
                                  'search_release'  'clouds':1
                                     'search_rest'  '00singer':1 '1969':4 'don':5 'eos':3 'folk':8,10 'ifs':7,9,11 'songwriter':2 't':6
                                    'search_combo'  '00singer':11 '1969':14 'clouds':10C 'don':2A,15 'dont':4A 'eos':13 'folk':18,20 'i':1A 'ifs':17,19,21 'joni':8B 'know':5A 'mitchell':9B 'songwriter':12 'stand':7A 't':3A,16 'where':6A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  1969
                                     'discogstags'  ['rock', 'folk rock']

============================== file details ==============================
                                           'mtime'  1636400331.015305  (2021-11-08 20:38:51)
                             'size'  4665216