======================== unified (from filesystem) ========================
                                         'bitrate'  '249.9'
                                        'duration'  '246'
                                          'artist'  'Forever Slave'
                                     'text_people'  ''
                                         'release'  'Tales For Bad Girls'
                                           'title'  'Gasoline'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['female vocalists', 'gothic', 'female fronted metal', 'symphonic metal', "
 "'gothic metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '113.263'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tales For Bad Girls'
'TBPM' (BPM (beats per minute))                     '113.263'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Gasoline'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Forever Slave'
'TRCK' (Track number/Position in set)               '12'
'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'                                   ['female vocalists',
 'gothic',
 'female fronted metal',
 'symphonic metal',
 'gothic metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.33 dB'
'TXXX:replaygain_track_peak'                        '0.306028'

========================== row from database ==========================
                                              'id'  1393446
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Forever Slave/Forever Slave-Tales For Bad Girls (2008)/12-gasoline.mp3
                                         'working'  None
                                         'bitrate'  249
                                    'duration_sec'  246
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  7718038
                                           'mtime'  1620310295
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal (2008) 12 gasoline eid metal doom gothic
                                      'tag_artist'  Forever Slave
                                     'tag_release'  Tales For Bad Girls
                                       'tag_title'  Gasoline
                                             'bpm'  113.263
                                    'search_title'  'gasoline':1
                                   'search_artist'  'forever':1 'slave':2
                                  'search_release'  'bad':3 'for':2 'girls':4 'tales':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '2008':3,4 'doom':8 'eid':6 'gasoline':5 'gothic':9 'metal':7
                                    'search_combo'  '00dwimp':8 '00metal':9 '2008':10,11 'bad':6C 'doom':15 'eid':13 'for':5C 'forever':2B 'gasoline':1A,12 'girls':7C 'gothic':16 'metal':14 'slave':3B 'tales':4C
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['female vocalists', 'gothic', 'female fronted metal', 'symphonic metal', 'gothic metal']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310294.751406  (2021-05-06 16:11:34)
                             'size'  7718038