======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '204'
                                          'artist'  'The Red Hot Chili Peppers'
                                     'text_people'  ''
                                         'release'  'The Red Hot Chili Peppers'
                                           'title'  'Buckle Down'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'alternative rock', 'funk rock', 'alternative', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1984'
                                        'comments'  ''
                                           'genre'  'rock-funk'
                                             'bpm'  '111.701'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Red Hot Chili Peppers'
'TBPM' (BPM (beats per minute))                     '111.701'
'TCON' (Content type, a.k.a. Genre)                 'rock-funk'
'TDRC' (Recording time)                             '1984'
'TIT2' (Title/songname/content description)         'Buckle Down'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Red Hot Chili Peppers'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock', 'alternative rock', 'funk rock', 'alternative', 'funk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.29 dB'
'TXXX:replaygain_track_peak'                        '0.629063'

========================== row from database ==========================
                                              'id'  1333196
                                            'path'  /data/Music/Bulk/00poprockelectronic/Red Hot Chilli Peppers/The Red Hot Chili Peppers/Red Hot Chili Peppers, the - Buckle Down.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  204
                                           'genre'  rock-funk
                                        'filesize'  2451148
                                           'mtime'  1630253042
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Chilli Peppers, the rock funk
                                      'tag_artist'  The Red Hot Chili Peppers
                                     'tag_release'  The Red Hot Chili Peppers
                                       'tag_title'  Buckle Down
                                             'bpm'  111.701
                                    'search_title'  'buckle':1 'down':2
                                   'search_artist'  'chili':4 'hot':3 'peppers':5 'red':2 'the':1
                                  'search_release'  'chili':4 'hot':3 'peppers':5 'red':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 'chilli':2 'funk':7 'peppers':3,4 'rock':6 'the':5
                                    'search_combo'  '00poprockelectronic':13 'buckle':1A 'chili':6B,11C 'chilli':14 'down':2A 'funk':19 'hot':5B,10C 'peppers':7B,12C,15,16 'red':4B,9C 'rock':18 'the':3B,8C,17
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'alternative rock', 'funk rock', 'alternative', 'funk']
                                        'tag_date'  1984
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630253041.827825  (2021-08-29 18:04:01)
                             'size'  2451148