======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '236'
                                          'artist'  'Lacuna Coil'
                                     'text_people'  ''
                                         'release'  'Comalies'
                                           'title'  "Angel's Punishment"
                                           '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-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['female vocalists', 'gothic', 'female fronted metal', 'metal', 'gothic "
 "metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '127.846'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Comalies'
'TBPM' (BPM (beats per minute))                     '127.846'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         "Angel's Punishment"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lacuna Coil'
'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', 'metal', 'gothic metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.344192'

========================== row from database ==========================
                                              'id'  1497704
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Lacuna Coil/Lacuna_Coil_-_Comalies_-_12_-_Angel_s_Punishment.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  236
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  5668736
                                           'mtime'  1620310300
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Lacuna_Coil_ _Comalies_ _12_ _Angel_s_Punishment eid metal doom or gothic
                                      'tag_artist'  Lacuna Coil
                                     'tag_release'  Comalies
                                       'tag_title'  Angel's Punishment
                                             'bpm'  127.846
                                    'search_title'  'angel':1 'angels':3 'punishment':4 's':2
                                   'search_artist'  'coil':2 'lacuna':1
                                  'search_release'  'comalies':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '12':6 'angel':7 'coil':4 'comalies':5 'doom':12 'eid':10 'gothic':14 'lacuna':3 'metal':11 'or':13 'punishment':9 's':8
                                    'search_combo'  '00dwimp':8 '00metal':9 '12':13 'angel':1A,14 'angels':3A 'coil':6B,11 'comalies':7C,12 'doom':19 'eid':17 'gothic':21 'lacuna':5B,10 'metal':18 'or':20 'punishment':4A,16 's':2A,15
                                    'tag_tracknum'  12
                                      '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-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['female vocalists', 'gothic', 'female fronted metal', 'metal', 'gothic metal']
                                        'tag_date'  2002
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310299.5542727  (2021-05-06 16:11:39)
                             'size'  5668736