======================== unified (from filesystem) ========================
                                         'bitrate'  '216.8'
                                        'duration'  '12'
                                          'artist'  'Sore Throat'
                                     'text_people'  ''
                                         'release'  'Death To Capitalist Halmshaw (Compilation)'
                                           'title'  'Only The Dead'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-4', 'q-play-1', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['grindcore', 'hardcore punk', 'crust', 'crust punk', 'noisecore']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '40'
                                      'tracktotal'  '83'
                                            'date'  '1988'
                                        'comments'  ''
                                           'genre'  'nonmusic-fragments;eid-noise-grindcore'
                                             'bpm'  '144.028'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Death To Capitalist Halmshaw (Compilation)'
'TBPM' (BPM (beats per minute))                     '144.028'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-fragments', 'eid-noise-grindcore']
'TDRC' (Recording time)                             '1988'
'TENC' (Encoded by)                                 'Dbpoweramp Release 13'
'TIT2' (Title/songname/content description)         'Only The Dead'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sore Throat'
'TRCK' (Track number/Position in set)               '40/83'
'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'                                   ['grindcore', 'hardcore punk', 'crust', 'crust punk', 'noisecore']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.19 dB'
'TXXX:replaygain_track_peak'                        '0.556182'

========================== row from database ==========================
                                              'id'  483589
                                            'path'  /data/Music/Bulk/0nonmusic/1988a - Death To Capitalist Halmshaw/40. Only The Dead.mp3
                                         'working'  None
                                         'bitrate'  218
                                    'duration_sec'  12
                                           'genre'  nonmusic-fragments;eid-noise-grindcore
                                        'filesize'  352505
                                           'mtime'  1620311593
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 1988a 40. nonmusic fragments;eid noise grindcore
                                      'tag_artist'  Sore Throat
                                     'tag_release'  Death To Capitalist Halmshaw (Compilation)
                                       'tag_title'  Only The Dead
                                             'bpm'  144.028
                                    'search_title'  'dead':3 'only':1 'the':2
                                   'search_artist'  'sore':1 'throat':2
                                  'search_release'  'capitalist':3 'compilation':5,6 'death':1 'halmshaw':4 'to':2
                                     'search_rest'  '0nonmusic':1 '1988a':2 '40':3,4 'eid':7,9 'fragments':6,8 'grindcore':11 'noise':10 'nonmusic':5
                                    'search_combo'  '0nonmusic':12 '1988a':13 '40':14,15 'capitalist':8C 'compilation':10C,11C 'dead':3A 'death':6C 'eid':18,20 'fragments':17,19 'grindcore':22 'halmshaw':9C 'noise':21 'nonmusic':16 'only':1A 'sore':4B 'the':2A 'throat':5B 'to':7C
                                    'tag_tracknum'  40
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['grindcore', 'hardcore punk', 'crust', 'crust punk', 'noisecore']
                                        'tag_date'  1988
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311593.2685359  (2021-05-06 16:33:13)
                             'size'  352505