======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '193'
                                          'artist'  '(həd) Planet Earth'
                                     'text_people'  ''
                                         'release'  '(Hed)PE'
                                           'title'  'P.O.S'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk', 'punk rock', 'rapcore', 'metal', 'nu metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '124.011'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '(Hed)PE'
'TBPM' (BPM (beats per minute))                     '124.011'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'P.O.S'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               '(həd) Planet Earth'
'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'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['punk', 'punk rock', 'rapcore', 'metal', 'nu metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.56 dB'
'TXXX:replaygain_track_peak'                        '0.471524'

========================== row from database ==========================
                                              'id'  1395792
                                            'path'  /data/Music/Bulk/00dwimp/00metal/(Hed)P.E/(Hed).Pe [1997]/(hed)pe - 01 - p.o.s.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  193
                                           'genre'  eid-metal-nu
                                        'filesize'  4644335
                                           'mtime'  1620311030
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal (Hed)P.E (Hed).Pe [1997] (hed)pe 01 p.o.s eid metal nu
                                      'tag_artist'  (həd) Planet Earth
                                     'tag_release'  (Hed)PE
                                       'tag_title'  P.O.S
                                             'bpm'  124.011
                                    'search_title'  'o':2 'p':1 'pos':4 's':3
                                   'search_artist'  'earth':4 'həd':1,2 'planet':3
                                  'search_release'  'hed':1 'hedpe':3 'pe':2
                                     'search_rest'  '00dwimp':1 '00metal':2 '1997':9,10 'e':5 'eid':17 'hed':3,7,11 'hedpe':6 'metal':18 'nu':19 'o':14 'p':4,13 'pe':8,12 'pos':16 's':15
                                    'search_combo'  '00dwimp':12 '00metal':13 '1997':20,21 'e':16 'earth':8B 'eid':28 'hed':9C,14,18,22 'hedpe':11C,17 'həd':5B,6B 'metal':29 'nu':30 'o':2A,25 'p':1A,15,24 'pe':10C,19,23 'planet':7B 'pos':4A,27 's':3A,26
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['punk', 'punk rock', 'rapcore', 'metal', 'nu metal']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620311029.9722638  (2021-05-06 16:23:49)
                             'size'  4644335