======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '294'
                                          'artist'  'Eels'
                                     'text_people'  'Mark Oliver Everett'
                                         'release'  'With Strings: Live at Town Hall'
                                           'title'  'Things The Grandchildren Should Know'
                                           '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-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '22'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '122.957'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000B1D 000001C6 0000A0A7'
'COMM:iTunNORM:eng'                                 (' 00000B1D 000001C6 0000A0A7 00002753 0001ED29 000443BC 0000787D 00007A94 '
 '000182D6 0004440A')
'COMM:iTunes_CDDB_IDs:eng'                          '22+A0F933689C2E7FB6B99B7E721A1EE2D3+6934999'
'TALB' (Album/Movie/Show title)                     'With Strings: Live at Town Hall'
'TBPM' (BPM (beats per minute))                     '122.957'
'TCOM' (Composer)                                   'Mark Oliver Everett'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'iTunes v4.8.0.32'
'TIT2' (Title/songname/content description)         'Things The Grandchildren Should Know'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Eels'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '22'
'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:lastfmtags'                                   ['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.53 dB'
'TXXX:replaygain_track_peak'                        '0.564385'

========================== row from database ==========================
                                              'id'  1366635
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Eels - With Strings_ Live at Town Hall/22 Things The Grandchildren Should K.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  294
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  4707233
                                           'mtime'  1621697349
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock Strings_ 22 ifs songwriter indie rock
                                      'tag_artist'  Eels
                                     'tag_release'  With Strings: Live at Town Hall
                                       'tag_title'  Things The Grandchildren Should Know
                                             'bpm'  122.957
                                    'search_title'  'grandchildren':3 'know':5 'should':4 'the':2 'things':1
                                   'search_artist'  'eels':1
                                  'search_release'  'at':5 'hall':7 'live':4 'strings':2,3 'town':6 'with':1
                                     'search_rest'  '00poprockelectronic':1 '22':5 'ifs':6 'indie':8 'indierock':3 'poprock':2 'rock':9 'songwriter':7 'strings':4
                                    'search_combo'  '00poprockelectronic':14 '22':18 'at':11C 'eels':6B 'grandchildren':3A 'hall':13C 'ifs':19 'indie':21 'indierock':16 'know':5A 'live':10C 'poprock':15 'rock':22 'should':4A 'songwriter':20 'strings':8C,9C,17 'the':2A 'things':1A 'town':12C 'with':7C
                                    'tag_tracknum'  22
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697349.1415133  (2021-05-22 17:29:09)
                             'size'  4707233