======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '162'
                                          'artist'  'Paul Anka'
                                     'text_people'  ''
                                         'release'  'Rock Swings'
                                           'title'  'Smells Like Teen Spirit'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', '60s', 'canadian', 'jazz', 'easy listening', 'swing']"
                                     'discogstags'  "['jazz', 'easy listening', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing'
                                             'bpm'  '127.846'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000E55 00000E40 00007EDC'
'COMM:iTunNORM:eng'                                 (' 00000E55 00000E40 00007EDC 00007D3A 00012FC3 00025575 00008000 00008000 '
 '00010894 00000812')
'TALB' (Album/Movie/Show title)                     'Rock Swings'
'TBPM' (BPM (beats per minute))                     '127.846'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-swing'
'TCOP' (Copyright message)                          'aae'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 '=Annelies='
'TIT2' (Title/songname/content description)         'Smells Like Teen Spirit'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul Anka'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'easy listening', 'swing']
'TXXX:lastfmtags'                                   ['oldies', '60s', 'canadian', 'jazz', 'easy listening', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.449029'

========================== row from database ==========================
                                              'id'  1305429
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/Rock Swings/paul anka - rock swings - 09 - smells like teen spirit-aae.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  162
                                           'genre'  prerock-jb-jazz-soft-swing
                                        'filesize'  3913738
                                           'mtime'  1620541154
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted paul anka rock swings 09 smells like teen spirit aae prerock jb jazz soft swing
                                      'tag_artist'  Paul Anka
                                     'tag_release'  Rock Swings
                                       'tag_title'  Smells Like Teen Spirit
                                             'bpm'  127.846
                                    'search_title'  'like':2 'smells':1 'spirit':4 'teen':3
                                   'search_artist'  'anka':2 'paul':1
                                  'search_release'  'rock':1 'swings':2
                                     'search_rest'  '00poprockelectronic':1 'aae':11 'anka':4 'jazz':14 'jb':13 'like':8 'paul':3 'prerock':12 'rock':5 'smells':7 'soft':15 'spirit':10 'swing':16 'swings':6 'teen':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 'aae':19 'anka':6B,12 'jazz':22 'jb':21 'like':2A,16 'paul':5B,11 'prerock':20 'rock':7C,13 'smells':1A,15 'soft':23 'spirit':4A,18 'swing':24 'swings':8C,14 'teen':3A,17 'unsorted':10
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['oldies', '60s', 'canadian', 'jazz', 'easy listening', 'swing']
                                        'tag_date'  2005
                                     'discogstags'  ['jazz', 'easy listening', 'swing']

============================== file details ==============================
                                           'mtime'  1620541154.0625885  (2021-05-09 08:19:14)
                             'size'  3913738