======================== unified (from filesystem) ========================
                                         'bitrate'  '229.701'
                                        'duration'  '162'
                                          'artist'  'The Aquabats!'
                                     'text_people'  ''
                                         'release'  'Charge!!'
                                           'title'  'Plastic Lips!'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['ska', 'ska punk', 'punk', 'fun', 'rock']"
                                     'discogstags'  "['rock', 'pop punk', 'new wave']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk-ska'
                                             'bpm'  '121.119'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Charge!!'
'TBPM' (BPM (beats per minute))                     '121.119'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk-ska'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Plastic Lips!'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Aquabats!'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'pop punk', 'new wave']
'TXXX:lastfmtags'                                   ['ska', 'ska punk', 'punk', 'fun', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.17 dB'
'TXXX:replaygain_track_peak'                        '0.390242'

========================== row from database ==========================
                                              'id'  1312625
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Aquabats/Charge/06-the_aquabats-plastic_lips-kzt.mp3
                                         'working'  None
                                         'bitrate'  229
                                    'duration_sec'  162
                                           'genre'  rock-gr-punk-ska
                                        'filesize'  4658647
                                           'mtime'  1621696003
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 06 the_aquabats plastic_lips kzt rock gr punk ska
                                      'tag_artist'  The Aquabats!
                                     'tag_release'  Charge!!
                                       'tag_title'  Plastic Lips!
                                             'bpm'  121.119
                                    'search_title'  'lips':2 'plastic':1
                                   'search_artist'  'aquabats':2 'the':1
                                  'search_release'  'charge':1
                                     'search_rest'  '00poprockelectronic':1 'aquabats':3 'gr':8 'kzt':6 'lips':5 'plastic':4 'punk':9 'rock':7 'ska':10 'the':2
                                    'search_combo'  '00poprockelectronic':6 'aquabats':4B,8 'charge':5C 'gr':13 'kzt':11 'lips':2A,10 'plastic':1A,9 'punk':14 'rock':12 'ska':15 'the':3B,7
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['ska', 'ska punk', 'punk', 'fun', 'rock']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'pop punk', 'new wave']

============================== file details ==============================
                                           'mtime'  1621696002.965618  (2021-05-22 17:06:42)
                             'size'  4658647