======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '249'
                                          'artist'  'Joni Mitchell'
                                     'text_people'  'Dan Hartman & Charlie Midnight'
                                         'release'  'Turbulent Indigo'
                                           'title'  'How Do You Stop'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', "
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                                      'lastfmtags'  "['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '10'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk;ifs-songwriter-eos'
                                             'bpm'  '106.475'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000257 0000022D 000028DA 00002286 00038587 00038587 00007B35 00007F5B '
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'COMM:iTunes_CDDB_IDs:eng'                          '10+E642AF5589B39A73EA21DDC88D95F387+441554'
'TALB' (Album/Movie/Show title)                     'Turbulent Indigo'
'TBPM' (BPM (beats per minute))                     '106.475'
'TCOM' (Composer)                                   'Dan Hartman & Charlie Midnight'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-folk', 'ifs-songwriter-eos']
'TDRC' (Recording time)                             '1994'
'TENC' (Encoded by)                                 'iTunes v4.6.0.15'
'TIT2' (Title/songname/content description)         'How Do You Stop'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Joni Mitchell'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/10'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock']
'TXXX:lastfmtags'                                   ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'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'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.17 dB'
'TXXX:replaygain_track_peak'                        '0.689863'

========================== row from database ==========================
                                              'id'  176045
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Joni Mitchell/1994 - Turbulent Indigo/03 how do you stop.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  249
                                           'genre'  ifs-songwriter-folk;ifs-songwriter-eos
                                        'filesize'  9973697
                                           'mtime'  1636400350
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1994 03 how do you stop ifs songwriter folk;ifs songwriter eos
                                      'tag_artist'  Joni Mitchell
                                     'tag_release'  Turbulent Indigo
                                       'tag_title'  How Do You Stop
                                             'bpm'  106.475
                                    'search_title'  'do':2 'how':1 'stop':4 'you':3
                                   'search_artist'  'joni':1 'mitchell':2
                                  'search_release'  'indigo':2 'turbulent':1
                                     'search_rest'  '00singer':1 '1994':4 'do':6 'eos':3 'folk':10,12 'how':5 'ifs':9,11,13 'songwriter':2 'stop':8 'you':7
                                    'search_combo'  '00singer':9 '1994':12 'do':2A,14 'eos':11 'folk':18,20 'how':1A,13 'ifs':17,19,21 'indigo':8C 'joni':5B 'mitchell':6B 'songwriter':10 'stop':4A,16 'turbulent':7C 'you':3A,15
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  2B
                                           '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-3', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  1994
                                     'discogstags'  ['rock', 'folk rock']

============================== file details ==============================
                                           'mtime'  1636400350.468069  (2021-11-08 20:39:10)
                             'size'  9973697