======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '191'
                                          'artist'  'Killswitch Engage'
                                     'text_people'  "Adam Dutkiewicz/Howard Jones/Joel Stroezel/Justin Foley/Mike D'Antonio"
                                         'release'  'Killswitch Engage II'
                                           'title'  'Never Again'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metalcore', 'hardcore', 'melodic death metal', 'metal', 'melodic metalcore']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '99.812'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Killswitch Engage II'
'TBPM' (BPM (beats per minute))                     '99.812'
'TCOM' (Composer)                                   "Adam Dutkiewicz/Howard Jones/Joel Stroezel/Justin Foley/Mike D'Antonio"
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Never Again'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Killswitch Engage'
'TPE2' (Band/orchestra/accompaniment)               'Killswitch Engage'
'TPUB' (Publisher)                                  'Roadrunner'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['metalcore', 'hardcore', 'melodic death metal', 'metal', 'melodic metalcore']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.05 dB'
'TXXX:replaygain_track_peak'                        '0.357205'

========================== row from database ==========================
                                              'id'  1397787
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Killswitch Engage/Killswitch Engage (2009)/01-killswitch_engage-never_again-h8me.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  191
                                           'genre'  eid-metal-death
                                        'filesize'  4596306
                                           'mtime'  1620302060
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal (2009) 01 killswitch_engage never_again h8me eid metal death
                                      'tag_artist'  Killswitch Engage
                                     'tag_release'  Killswitch Engage II
                                       'tag_title'  Never Again
                                             'bpm'  99.812
                                    'search_title'  'again':2 'never':1
                                   'search_artist'  'engage':2 'killswitch':1
                                  'search_release'  'engage':2 'ii':3 'killswitch':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '2009':3,4 'again':8 'death':12 'eid':10 'engage':6 'h8me':9 'killswitch':5 'metal':11 'never':7
                                    'search_combo'  '00dwimp':8 '00metal':9 '2009':10,11 'again':2A,15 'death':19 'eid':17 'engage':4B,6C,13 'h8me':16 'ii':7C 'killswitch':3B,5C,12 'metal':18 'never':1A,14
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['metalcore', 'hardcore', 'melodic death metal', 'metal', 'melodic metalcore']
                                        'tag_date'  2009
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302059.6545804  (2021-05-06 13:54:19)
                             'size'  4596306