======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '120'
                                          'artist'  'The Spartans'
                                     'text_people'  ''
                                         'release'  'Greaser Instrumentals Vol. 08'
                                           'title'  'Zig Zag'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'Q-OLDST-2', 'q-chart-1', 'q-drums-2', 'q-other-4', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['mod', '60s', 'all', 'rock', 'genre: surf rock']"
                                     'discogstags'  "['punk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '27'
                                      'tracktotal'  '27'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '118.1'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00001B0B 000019A9 00010B18 0000E504 0000C15E 0000C15E 0000805A 00007837 '
 '0000D4F5 000126E5')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A20 0000000000513750 00000000 0024CA5E 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '27++'
'TALB' (Album/Movie/Show title)                     'Greaser Instrumentals Vol. 08'
'TBPM' (BPM (beats per minute))                     '118.1'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDRC' (Recording time)                             '1965'
'TENC' (Encoded by)                                 'iTunes 11.1.5.5'
'TIT2' (Title/songname/content description)         'Zig Zag'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Spartans'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '27/27'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['punk', 'rock']
'TXXX:lastfmtags'                                   ['mod', '60s', 'all', 'rock', 'genre: surf rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+4.42 dB'
'TXXX:replaygain_track_peak'                        '0.299534'

========================== row from database ==========================
                                              'id'  1418746
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Bobby Gregg - va - Greaser Instrumentals Vol. 08/27 Zig Zag.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  120
                                           'genre'  rock-pop-surf
                                        'filesize'  2417476
                                           'mtime'  1620736921
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner Bobby Gregg va 27 rock pop surf
                                      'tag_artist'  The Spartans
                                     'tag_release'  Greaser Instrumentals Vol. 08
                                       'tag_title'  Zig Zag
                                             'bpm'  118.1
                                    'search_title'  'zag':2 'zig':1
                                   'search_artist'  'spartans':2 'the':1
                                  'search_release'  'greaser':1 'instrumentals':2 'vol':3,4
                                     'search_rest'  '27':8 'bobby':5 'garage':2 'gregg':6 'pop':10 'punk':1 'rock':9 'stoner':4 'surf':3 'va':7
                                    'search_combo'  '27':16 'bobby':13 'garage':10 'greaser':5C 'gregg':14 'instrumentals':6C 'pop':18 'punk':9 'rock':17 'spartans':4B 'stoner':12 'surf':11 'the':3B 'va':15 'vol':7C,8C 'zag':2A 'zig':1A
                                    'tag_tracknum'  27
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['mod', '60s', 'all', 'rock', 'genre: surf rock']
                                        'tag_date'  1965
                                     'discogstags'  ['punk', 'rock']

============================== file details ==============================
                                           'mtime'  1620736921.2626183  (2021-05-11 14:42:01)
                             'size'  2417476