======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '135'
                                          'artist'  'The Volcanoes'
                                     'text_people'  ''
                                         'release'  'Greaser Instrumentals Vol. 08'
                                           'title'  'Shotgun'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-3', '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'  "['7soul', 'northern soul']"
                                     'discogstags'  "['pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '27'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '125.3'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00001855 00001882 000169AD 0001AFD4 0000C882 0000C882 00007FE3 000080CA '
 '0000F082 0001150A')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000714 00000000005AD7DC 00000000 002926B2 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))                     '125.3'
'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)         'Shotgun'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Volcanoes'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '11/27'
'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'                                  ['pop', 'rock']
'TXXX:lastfmtags'                                   ['7soul', 'northern soul']
'TXXX:q-bass'                                       '3'
'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'                        '+1.60 dB'
'TXXX:replaygain_track_peak'                        '0.357116'

========================== row from database ==========================
                                              'id'  1419296
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Bobby Gregg - va - Greaser Instrumentals Vol. 08/11 Shotgun.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  135
                                           'genre'  rock-pop-surf
                                        'filesize'  2703256
                                           'mtime'  1620736909
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner Bobby Gregg va 11 rock pop surf
                                      'tag_artist'  The Volcanoes
                                     'tag_release'  Greaser Instrumentals Vol. 08
                                       'tag_title'  Shotgun
                                             'bpm'  125.3
                                    'search_title'  'shotgun':1
                                   'search_artist'  'the':1 'volcanoes':2
                                  'search_release'  'greaser':1 'instrumentals':2 'vol':3,4
                                     'search_rest'  'bobby':5 'garage':2 'gregg':6 'pop':9 'punk':1 'rock':8 'stoner':4 'surf':3 'va':7
                                    'search_combo'  'bobby':12 'garage':9 'greaser':4C 'gregg':13 'instrumentals':5C 'pop':16 'punk':8 'rock':15 'shotgun':1A 'stoner':11 'surf':10 'the':2B 'va':14 'vol':6C,7C 'volcanoes':3B
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  11B
                                           '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-3', 'q-grit-2']
                                      'lastfmtags'  ['7soul', 'northern soul']
                                        'tag_date'  1965
                                     'discogstags'  ['pop', 'rock']

============================== file details ==============================
                                           'mtime'  1620736909.4780798  (2021-05-11 14:41:49)
                             'size'  2703256