======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '389'
                                          'artist'  'Electric Wizard'
                                     'text_people'  ''
                                         'release'  'Dopethrone'
                                           'title'  'Barbarian'
                                           '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-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['sludge', 'stoner doom', 'stoner metal', 'doom metal', 'stoner rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-gr-stoner;eid-metal-stoner'
                                             'bpm'  '127.524'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Dopethrone'
'TBPM' (BPM (beats per minute))                     '127.524'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-stoner', 'eid-metal-stoner']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Barbarian'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '389355'
'TPE1' (Lead performer(s)/Soloist(s))               'Electric Wizard'
'TPE2' (Band/orchestra/accompaniment)               'Electric Wizard'
'TRCK' (Track number/Position in set)               '4'
'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:lastfmtags'                                   ['sludge', 'stoner doom', 'stoner metal', 'doom metal', 'stoner rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.32 dB'
'TXXX:replaygain_track_peak'                        '0.403374'

========================== row from database ==========================
                                              'id'  1414207
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/(2000) dopethrone/Electric Wizard - Dopethrone - (04) Barbarian.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  389
                                           'genre'  rock-gr-stoner;eid-metal-stoner
                                        'filesize'  9365144
                                           'mtime'  1620311671
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (2000) dopethrone (04) rock gr stoner;eid metal stoner
                                      'tag_artist'  Electric Wizard
                                     'tag_release'  Dopethrone
                                       'tag_title'  Barbarian
                                             'bpm'  127.524
                                    'search_title'  'barbarian':1
                                   'search_artist'  'electric':1 'wizard':2
                                  'search_release'  'dopethrone':1
                                     'search_rest'  '04':5,6 '2000':2,3 'classicprogpsy':1 'dopethrone':4 'eid':10,12 'gr':8 'metal':13 'rock':7 'stoner':9,11,14
                                    'search_combo'  '04':9,10 '2000':6,7 'barbarian':1A 'classicprogpsy':5 'dopethrone':4C,8 'eid':14,16 'electric':2B 'gr':12 'metal':17 'rock':11 'stoner':13,15,18 'wizard':3B
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['sludge', 'stoner doom', 'stoner metal', 'doom metal', 'stoner rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620311670.8599317  (2021-05-06 16:34:30)
                             'size'  9365144